case 1: runtime error: exit status 2
panic: runtime error: index out of range [2] with length 2

goroutine 1 [running]:
main.computeNext({0x40000a2db8, 0x3, 0x40000a2d58?}, {0x40000a2dd8, 0x2, 0x17b34?}, {0x40000ba000, 0x3, 0xffffb5808501?})
	/tmp/build-1261496059/solution.go:140 +0x47c
main.main()
	/tmp/build-1261496059/solution.go:211 +0x728