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100
5 8
1 2
1 3
1 4
1 5
2 1
3 1
4 1
5 1
5 10
1 3
1 4
2 3
2 5
3 1
3 4
3 5
4 2
5 1
5 3
5 10
1 4
2 3
2 5
3 1
3 5
4 2
4 3
4 5
5 1
5 2
3 6
1 2
1 3
2 1
2 3
3 1
3 2
5 10
1 2
1 5
2 3
2 4
3 1
4 3
4 5
5 2
5 3
5 4
4 10
1 2
1 3
1 4
2 1
2 3
2 4
3 1
3 4
4 2
4 3
5 10
1 2
1 3
2 1
2 4
3 1
3 5
4 2
4 5
5 3
5 4
5 10
1 ...

Case #1: IMPOSSIBLE
Case #2: 16
1 4 2 5 3 5 1 4 2 5 1 3 4 2 3 1
Case #3: 16
1 4 5 2 5 2 3 5 1 4 3 1 4 2 3 1
Case #4: 7
1 3 2 3 1 2 1
Case #5: 16
1 5 4 5 3 1 2 4 5 2 4 3 1 2 3 1
Case #6: 13
1 4 3 4 2 4 2 3 1 3 1 2 1
Case #7: 11
1 3 5 4 5 3 1 2 4 2 1
Case #8: 16
1 4 3 5 2 4 2 3 5 1 4 2 1 3 5 1
Case #9...

wrong answer you didn't find a solution but jury did (test case 9)

100
199 4980
1 95
1 96
1 105
1 124
1 130
1 131
1 135
1 137
1 139
1 140
1 141
1 147
1 155
1 172
1 174
1 179
1 183
1 188
1 193
1 196
1 197
2 3
2 5
2 13
2 14
2 17
2 20
2 24
2 26
2 30
2 41
2 44
2 45
2 52
2 56
2 67
2 70
2 71
2 74
2 78
2 84
2 85
2 90
2 92
2 93
2 97
2 107
2 111
2 113
2 122
2 124
2 128
2 13...

Case #1: IMPOSSIBLE
Case #2: IMPOSSIBLE
Case #3: 7801
1 193 195 197 200 169 196 195 197 200 169 191 195 197 200 169 178 196 195 197 200 169 178 187 200 169 178 171 193 194 182 197 200 169 178 171 184 185 181 178 171 184 185 181 178 171 184 185 181 178 171 184 185 181 178 171 184 185 181 178 171 184 ...

wrong answer you didn't find a solution but jury did (test case 5)