panic: runtime error: index out of range [5] with length 5

goroutine 1 [running]:
main.solve(0x5, {0x400007adb8, 0x1, 0xb?})
	/home/ubuntu/codeforces/0-999/200-299/260-269/267/verifierC.go:113 +0xad8
main.buildCase(0x400007bec0)
	/home/ubuntu/codeforces/0-999/200-299/260-269/267/verifierC.go:154 +0x200
main.main()
	/home/ubuntu/codeforces/0-999/200-299/260-269/267/verifierC.go:192 +0x1d8
exit status 2