#include <stdio.h>

int bin_to_int(int n7,int n6,int n5,int n4,int n3,int n2,int n1,int n0)
{
	return 128*n7 + 64*n6 + 32*n5 + 16*n4 + 8*n3 + 4*n2 + 2*n1 + n0;
}

int main(void)
{
	int n7,n6,n5,n4,n3,n2,n1,n0;
	int n;

	printf("2進数入力位置 7 6 5 4 3 2 1 0\n");
	printf("8桁の2進数 >> ");
	scanf("%d %d %d %d %d %d %d %d",&n7,&n6,&n5,&n4,&n3,&n2,&n1,&n0);

	n = bin_to_int(n7,n6,n5,n4,n3,n2,n1,n0);
	printf("%d\n",n);
	return 0;
}