5 unlines
6 [ "2005-02-28 + -10 * day = 2005-02-18"
7 , "2004-02-29 + -10 * day = 2004-02-19"
8 , "2004-01-31 + -10 * day = 2004-01-21"
9 , "2004-12-31 + -10 * day = 2004-12-21"
10 , "2005-07-01 + -10 * day = 2005-06-21"
11 , "2005-04-21 + -10 * day = 2005-04-11"
12 , "2005-06-30 + -10 * day = 2005-06-20"
13 , "2005-02-28 + -4 * day = 2005-02-24"
14 , "2004-02-29 + -4 * day = 2004-02-25"
15 , "2004-01-31 + -4 * day = 2004-01-27"
16 , "2004-12-31 + -4 * day = 2004-12-27"
17 , "2005-07-01 + -4 * day = 2005-06-27"
18 , "2005-04-21 + -4 * day = 2005-04-17"
19 , "2005-06-30 + -4 * day = 2005-06-26"
20 , "2005-02-28 + -1 * day = 2005-02-27"
21 , "2004-02-29 + -1 * day = 2004-02-28"
22 , "2004-01-31 + -1 * day = 2004-01-30"
23 , "2004-12-31 + -1 * day = 2004-12-30"
24 , "2005-07-01 + -1 * day = 2005-06-30"
25 , "2005-04-21 + -1 * day = 2005-04-20"
26 , "2005-06-30 + -1 * day = 2005-06-29"
27 , "2005-02-28 + 0 * day = 2005-02-28"
28 , "2004-02-29 + 0 * day = 2004-02-29"
29 , "2004-01-31 + 0 * day = 2004-01-31"
30 , "2004-12-31 + 0 * day = 2004-12-31"
31 , "2005-07-01 + 0 * day = 2005-07-01"
32 , "2005-04-21 + 0 * day = 2005-04-21"
33 , "2005-06-30 + 0 * day = 2005-06-30"
34 , "2005-02-28 + 1 * day = 2005-03-01"
35 , "2004-02-29 + 1 * day = 2004-03-01"
36 , "2004-01-31 + 1 * day = 2004-02-01"
37 , "2004-12-31 + 1 * day = 2005-01-01"
38 , "2005-07-01 + 1 * day = 2005-07-02"
39 , "2005-04-21 + 1 * day = 2005-04-22"
40 , "2005-06-30 + 1 * day = 2005-07-01"
41 , "2005-02-28 + 7 * day = 2005-03-07"
42 , "2004-02-29 + 7 * day = 2004-03-07"
43 , "2004-01-31 + 7 * day = 2004-02-07"
44 , "2004-12-31 + 7 * day = 2005-01-07"
45 , "2005-07-01 + 7 * day = 2005-07-08"
46 , "2005-04-21 + 7 * day = 2005-04-28"
47 , "2005-06-30 + 7 * day = 2005-07-07"
48 , "2005-02-28 + 83 * day = 2005-05-22"
49 , "2004-02-29 + 83 * day = 2004-05-22"
50 , "2004-01-31 + 83 * day = 2004-04-23"
51 , "2004-12-31 + 83 * day = 2005-03-24"
52 , "2005-07-01 + 83 * day = 2005-09-22"
53 , "2005-04-21 + 83 * day = 2005-07-13"
54 , "2005-06-30 + 83 * day = 2005-09-21"
55 , "2005-02-28 + -10 * month (clip) = 2004-04-28"
56 , "2004-02-29 + -10 * month (clip) = 2003-04-29"
57 , "2004-01-31 + -10 * month (clip) = 2003-03-31"
58 , "2004-12-31 + -10 * month (clip) = 2004-02-29"
59 , "2005-07-01 + -10 * month (clip) = 2004-09-01"
60 , "2005-04-21 + -10 * month (clip) = 2004-06-21"
61 , "2005-06-30 + -10 * month (clip) = 2004-08-30"
62 , "2005-02-28 + -4 * month (clip) = 2004-10-28"
63 , "2004-02-29 + -4 * month (clip) = 2003-10-29"
64 , "2004-01-31 + -4 * month (clip) = 2003-09-30"
65 , "2004-12-31 + -4 * month (clip) = 2004-08-31"
66 , "2005-07-01 + -4 * month (clip) = 2005-03-01"
67 , "2005-04-21 + -4 * month (clip) = 2004-12-21"
68 , "2005-06-30 + -4 * month (clip) = 2005-02-28"
69 , "2005-02-28 + -1 * month (clip) = 2005-01-28"
70 , "2004-02-29 + -1 * month (clip) = 2004-01-29"
71 , "2004-01-31 + -1 * month (clip) = 2003-12-31"
72 , "2004-12-31 + -1 * month (clip) = 2004-11-30"
73 , "2005-07-01 + -1 * month (clip) = 2005-06-01"
74 , "2005-04-21 + -1 * month (clip) = 2005-03-21"
75 , "2005-06-30 + -1 * month (clip) = 2005-05-30"
76 , "2005-02-28 + 0 * month (clip) = 2005-02-28"
77 , "2004-02-29 + 0 * month (clip) = 2004-02-29"
78 , "2004-01-31 + 0 * month (clip) = 2004-01-31"
79 , "2004-12-31 + 0 * month (clip) = 2004-12-31"
80 , "2005-07-01 + 0 * month (clip) = 2005-07-01"
81 , "2005-04-21 + 0 * month (clip) = 2005-04-21"
82 , "2005-06-30 + 0 * month (clip) = 2005-06-30"
83 , "2005-02-28 + 1 * month (clip) = 2005-03-28"
84 , "2004-02-29 + 1 * month (clip) = 2004-03-29"
85 , "2004-01-31 + 1 * month (clip) = 2004-02-29"
86 , "2004-12-31 + 1 * month (clip) = 2005-01-31"
87 , "2005-07-01 + 1 * month (clip) = 2005-08-01"
88 , "2005-04-21 + 1 * month (clip) = 2005-05-21"
89 , "2005-06-30 + 1 * month (clip) = 2005-07-30"
90 , "2005-02-28 + 7 * month (clip) = 2005-09-28"
91 , "2004-02-29 + 7 * month (clip) = 2004-09-29"
92 , "2004-01-31 + 7 * month (clip) = 2004-08-31"
93 , "2004-12-31 + 7 * month (clip) = 2005-07-31"
94 , "2005-07-01 + 7 * month (clip) = 2006-02-01"
95 , "2005-04-21 + 7 * month (clip) = 2005-11-21"
96 , "2005-06-30 + 7 * month (clip) = 2006-01-30"
97 , "2005-02-28 + 83 * month (clip) = 2012-01-28"
98 , "2004-02-29 + 83 * month (clip) = 2011-01-29"
99 , "2004-01-31 + 83 * month (clip) = 2010-12-31"
100 , "2004-12-31 + 83 * month (clip) = 2011-11-30"
101 , "2005-07-01 + 83 * month (clip) = 2012-06-01"
102 , "2005-04-21 + 83 * month (clip) = 2012-03-21"
103 , "2005-06-30 + 83 * month (clip) = 2012-05-30"
104 , "2005-02-28 + -10 * month (roll over) = 2004-04-28"
105 , "2004-02-29 + -10 * month (roll over) = 2003-04-29"
106 , "2004-01-31 + -10 * month (roll over) = 2003-03-31"
107 , "2004-12-31 + -10 * month (roll over) = 2004-03-02"
108 , "2005-07-01 + -10 * month (roll over) = 2004-09-01"
109 , "2005-04-21 + -10 * month (roll over) = 2004-06-21"
110 , "2005-06-30 + -10 * month (roll over) = 2004-08-30"
111 , "2005-02-28 + -4 * month (roll over) = 2004-10-28"
112 , "2004-02-29 + -4 * month (roll over) = 2003-10-29"
113 , "2004-01-31 + -4 * month (roll over) = 2003-10-01"
114 , "2004-12-31 + -4 * month (roll over) = 2004-08-31"
115 , "2005-07-01 + -4 * month (roll over) = 2005-03-01"
116 , "2005-04-21 + -4 * month (roll over) = 2004-12-21"
117 , "2005-06-30 + -4 * month (roll over) = 2005-03-02"
118 , "2005-02-28 + -1 * month (roll over) = 2005-01-28"
119 , "2004-02-29 + -1 * month (roll over) = 2004-01-29"
120 , "2004-01-31 + -1 * month (roll over) = 2003-12-31"
121 , "2004-12-31 + -1 * month (roll over) = 2004-12-01"
122 , "2005-07-01 + -1 * month (roll over) = 2005-06-01"
123 , "2005-04-21 + -1 * month (roll over) = 2005-03-21"
124 , "2005-06-30 + -1 * month (roll over) = 2005-05-30"
125 , "2005-02-28 + 0 * month (roll over) = 2005-02-28"
126 , "2004-02-29 + 0 * month (roll over) = 2004-02-29"
127 , "2004-01-31 + 0 * month (roll over) = 2004-01-31"
128 , "2004-12-31 + 0 * month (roll over) = 2004-12-31"
129 , "2005-07-01 + 0 * month (roll over) = 2005-07-01"
130 , "2005-04-21 + 0 * month (roll over) = 2005-04-21"
131 , "2005-06-30 + 0 * month (roll over) = 2005-06-30"
132 , "2005-02-28 + 1 * month (roll over) = 2005-03-28"
133 , "2004-02-29 + 1 * month (roll over) = 2004-03-29"
134 , "2004-01-31 + 1 * month (roll over) = 2004-03-02"
135 , "2004-12-31 + 1 * month (roll over) = 2005-01-31"
136 , "2005-07-01 + 1 * month (roll over) = 2005-08-01"
137 , "2005-04-21 + 1 * month (roll over) = 2005-05-21"
138 , "2005-06-30 + 1 * month (roll over) = 2005-07-30"
139 , "2005-02-28 + 7 * month (roll over) = 2005-09-28"
140 , "2004-02-29 + 7 * month (roll over) = 2004-09-29"
141 , "2004-01-31 + 7 * month (roll over) = 2004-08-31"
142 , "2004-12-31 + 7 * month (roll over) = 2005-07-31"
143 , "2005-07-01 + 7 * month (roll over) = 2006-02-01"
144 , "2005-04-21 + 7 * month (roll over) = 2005-11-21"
145 , "2005-06-30 + 7 * month (roll over) = 2006-01-30"
146 , "2005-02-28 + 83 * month (roll over) = 2012-01-28"
147 , "2004-02-29 + 83 * month (roll over) = 2011-01-29"
148 , "2004-01-31 + 83 * month (roll over) = 2010-12-31"
149 , "2004-12-31 + 83 * month (roll over) = 2011-12-01"
150 , "2005-07-01 + 83 * month (roll over) = 2012-06-01"
151 , "2005-04-21 + 83 * month (roll over) = 2012-03-21"
152 , "2005-06-30 + 83 * month (roll over) = 2012-05-30"
153 , "2005-02-28 + -10 * year (clip) = 1995-02-28"
154 , "2004-02-29 + -10 * year (clip) = 1994-02-28"
155 , "2004-01-31 + -10 * year (clip) = 1994-01-31"
156 , "2004-12-31 + -10 * year (clip) = 1994-12-31"
157 , "2005-07-01 + -10 * year (clip) = 1995-07-01"
158 , "2005-04-21 + -10 * year (clip) = 1995-04-21"
159 , "2005-06-30 + -10 * year (clip) = 1995-06-30"
160 , "2005-02-28 + -4 * year (clip) = 2001-02-28"
161 , "2004-02-29 + -4 * year (clip) = 2000-02-29"
162 , "2004-01-31 + -4 * year (clip) = 2000-01-31"
163 , "2004-12-31 + -4 * year (clip) = 2000-12-31"
164 , "2005-07-01 + -4 * year (clip) = 2001-07-01"
165 , "2005-04-21 + -4 * year (clip) = 2001-04-21"
166 , "2005-06-30 + -4 * year (clip) = 2001-06-30"
167 , "2005-02-28 + -1 * year (clip) = 2004-02-28"
168 , "2004-02-29 + -1 * year (clip) = 2003-02-28"
169 , "2004-01-31 + -1 * year (clip) = 2003-01-31"
170 , "2004-12-31 + -1 * year (clip) = 2003-12-31"
171 , "2005-07-01 + -1 * year (clip) = 2004-07-01"
172 , "2005-04-21 + -1 * year (clip) = 2004-04-21"
173 , "2005-06-30 + -1 * year (clip) = 2004-06-30"
174 , "2005-02-28 + 0 * year (clip) = 2005-02-28"
175 , "2004-02-29 + 0 * year (clip) = 2004-02-29"
176 , "2004-01-31 + 0 * year (clip) = 2004-01-31"
177 , "2004-12-31 + 0 * year (clip) = 2004-12-31"
178 , "2005-07-01 + 0 * year (clip) = 2005-07-01"
179 , "2005-04-21 + 0 * year (clip) = 2005-04-21"
180 , "2005-06-30 + 0 * year (clip) = 2005-06-30"
181 , "2005-02-28 + 1 * year (clip) = 2006-02-28"
182 , "2004-02-29 + 1 * year (clip) = 2005-02-28"
183 , "2004-01-31 + 1 * year (clip) = 2005-01-31"
184 , "2004-12-31 + 1 * year (clip) = 2005-12-31"
185 , "2005-07-01 + 1 * year (clip) = 2006-07-01"
186 , "2005-04-21 + 1 * year (clip) = 2006-04-21"
187 , "2005-06-30 + 1 * year (clip) = 2006-06-30"
188 , "2005-02-28 + 7 * year (clip) = 2012-02-28"
189 , "2004-02-29 + 7 * year (clip) = 2011-02-28"
190 , "2004-01-31 + 7 * year (clip) = 2011-01-31"
191 , "2004-12-31 + 7 * year (clip) = 2011-12-31"
192 , "2005-07-01 + 7 * year (clip) = 2012-07-01"
193 , "2005-04-21 + 7 * year (clip) = 2012-04-21"
194 , "2005-06-30 + 7 * year (clip) = 2012-06-30"
195 , "2005-02-28 + 83 * year (clip) = 2088-02-28"
196 , "2004-02-29 + 83 * year (clip) = 2087-02-28"
197 , "2004-01-31 + 83 * year (clip) = 2087-01-31"
198 , "2004-12-31 + 83 * year (clip) = 2087-12-31"
199 , "2005-07-01 + 83 * year (clip) = 2088-07-01"
200 , "2005-04-21 + 83 * year (clip) = 2088-04-21"
201 , "2005-06-30 + 83 * year (clip) = 2088-06-30"
202 , "2005-02-28 + -10 * year (roll over) = 1995-02-28"
203 , "2004-02-29 + -10 * year (roll over) = 1994-03-01"
204 , "2004-01-31 + -10 * year (roll over) = 1994-01-31"
205 , "2004-12-31 + -10 * year (roll over) = 1994-12-31"
206 , "2005-07-01 + -10 * year (roll over) = 1995-07-01"
207 , "2005-04-21 + -10 * year (roll over) = 1995-04-21"
208 , "2005-06-30 + -10 * year (roll over) = 1995-06-30"
209 , "2005-02-28 + -4 * year (roll over) = 2001-02-28"
210 , "2004-02-29 + -4 * year (roll over) = 2000-02-29"
211 , "2004-01-31 + -4 * year (roll over) = 2000-01-31"
212 , "2004-12-31 + -4 * year (roll over) = 2000-12-31"
213 , "2005-07-01 + -4 * year (roll over) = 2001-07-01"
214 , "2005-04-21 + -4 * year (roll over) = 2001-04-21"
215 , "2005-06-30 + -4 * year (roll over) = 2001-06-30"
216 , "2005-02-28 + -1 * year (roll over) = 2004-02-28"
217 , "2004-02-29 + -1 * year (roll over) = 2003-03-01"
218 , "2004-01-31 + -1 * year (roll over) = 2003-01-31"
219 , "2004-12-31 + -1 * year (roll over) = 2003-12-31"
220 , "2005-07-01 + -1 * year (roll over) = 2004-07-01"
221 , "2005-04-21 + -1 * year (roll over) = 2004-04-21"
222 , "2005-06-30 + -1 * year (roll over) = 2004-06-30"
223 , "2005-02-28 + 0 * year (roll over) = 2005-02-28"
224 , "2004-02-29 + 0 * year (roll over) = 2004-02-29"
225 , "2004-01-31 + 0 * year (roll over) = 2004-01-31"
226 , "2004-12-31 + 0 * year (roll over) = 2004-12-31"
227 , "2005-07-01 + 0 * year (roll over) = 2005-07-01"
228 , "2005-04-21 + 0 * year (roll over) = 2005-04-21"
229 , "2005-06-30 + 0 * year (roll over) = 2005-06-30"
230 , "2005-02-28 + 1 * year (roll over) = 2006-02-28"
231 , "2004-02-29 + 1 * year (roll over) = 2005-03-01"
232 , "2004-01-31 + 1 * year (roll over) = 2005-01-31"
233 , "2004-12-31 + 1 * year (roll over) = 2005-12-31"
234 , "2005-07-01 + 1 * year (roll over) = 2006-07-01"
235 , "2005-04-21 + 1 * year (roll over) = 2006-04-21"
236 , "2005-06-30 + 1 * year (roll over) = 2006-06-30"
237 , "2005-02-28 + 7 * year (roll over) = 2012-02-28"
238 , "2004-02-29 + 7 * year (roll over) = 2011-03-01"
239 , "2004-01-31 + 7 * year (roll over) = 2011-01-31"
240 , "2004-12-31 + 7 * year (roll over) = 2011-12-31"
241 , "2005-07-01 + 7 * year (roll over) = 2012-07-01"
242 , "2005-04-21 + 7 * year (roll over) = 2012-04-21"
243 , "2005-06-30 + 7 * year (roll over) = 2012-06-30"
244 , "2005-02-28 + 83 * year (roll over) = 2088-02-28"
245 , "2004-02-29 + 83 * year (roll over) = 2087-03-01"
246 , "2004-01-31 + 83 * year (roll over) = 2087-01-31"
247 , "2004-12-31 + 83 * year (roll over) = 2087-12-31"
248 , "2005-07-01 + 83 * year (roll over) = 2088-07-01"
249 , "2005-04-21 + 83 * year (roll over) = 2088-04-21"
250 , "2005-06-30 + 83 * year (roll over) = 2088-06-30"
251 ]