panic: exit status 1

goroutine 1 [running]:
main.genCase(0x400006cee8)
	/home/ubuntu/codeforces/1000-1999/1000-1099/1030-1039/1037/verifierE.go:72 +0x544
main.main()
	/home/ubuntu/codeforces/1000-1999/1000-1099/1030-1039/1037/verifierE.go:90 +0x18c
exit status 2