#include<bits/stdc++.h>
using namespace std;

int main(int argc, char *argv[2])
{
	FILE *inn = fopen(argv[1], "r");
	FILE *in = fopen(argv[2], "r");
	int a[3];
	fscanf(inn, "%d %d",&a[0], &a[1]);
    fscanf(in, "%d", &a[2]);
    
    if( a[2] < 1 or a[2] > 100 ) return !printf("0");
    
    sort(a, a+3);
    
    if( a[0]+a[1] > a[2] ) return !printf("1");
    else return !printf("0");
    
	return 0;
}