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#include <stdio.h>
#include <stdlib.h>
char *serial = "\x31\x3e\x3d\x26\x31";
int check(char *ptr)
{
int i = 0;
while (i < 5){
if (((ptr[i] - 1) ^ 0x55) != serial[i])
return 1;
i++;
}
return 0;
}
int main(int ac, char **av)
{
int ret;
if (ac != 2)
return -1;
ret = check(av[1]);
if (ret == 0)
printf("Win\n");
else
printf("fail\n");
return 0;
}