UVa 10878 - Decode the tape

#include <iostream>
#include <cstdlib>
#include <cstdio>

using namespace std;

int value[11] = {0,0,64,32,16,8,0,4,2,1,0};

int main()
{
	char buf[12];
	gets(buf);
	while ( gets(buf) && buf[0] != '_' ) {
		int sum = 0;
		for ( int i = 2 ; i < 10 ; ++ i )
			if ( buf[i] == 'o' )
				sum += value[i];
		printf("%c",sum);
	}
	return 0;
}