45
2 -1 5 7 -4
99 -1 -1 4 0
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199 -199 0 100 -99
1 2 3 4 5
0 0 0 1 0
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-999 -999 199 999 999
-999 -999 99 999 999
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631 -895 494 208 -316
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103 -582 667 127 -289
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287 241 -379 -940 907
395 -571 740 -49 -495
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431 -870 785 278 -542
-1 -1 999 1 1
99 104 114 105 115