#include <stdio.h>
int main(void) {
int x[8],i;
for(i
=0;i
<=7;i
++) scanf("%d",&x
[i
]); return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CglpbnQgeFs4XSxpOwogICAgZm9yKGk9MDtpPD03O2krKykgIHNjYW5mKCIlZCIsJnhbaV0pOwogICAgcHJpbnRmKCIleCIsJnhbMF0pOwogICAgcHJpbnRmKCIleCIseCk7CglyZXR1cm4gMDsKfQo=