#include <iostream>
#include <vector>
#include <algorithm>
#include <cstdio>
#include <string>
 
#define rep(x,to) for(int x=0;x<to;x++)
#define rep2(x,from,to) for(int x=from;x<to;x++)
 
using namespace std;
 
 
int main(void){
 
int l[10] ,v1,v2;
char cc;
 
    while(cin >> l[0] ){
        rep2(i,1,10) cin >> cc >> l[i];
        cin >> cc >> v1 >> cc >> v2;
        int kr=0;
        rep(i,10) kr += l[i];
        double tm = kr * 1.0l / (v1 + v2);
        double km = v1 * tm;
        kr = 0;
        rep(i,10){
            kr += l[i];
            if(kr >= km){
                cout << i+1 << endl;
                break;
            }  
        }
//      printf("%f,%f kr=%d\n",tm,km,kr);
    }
    return 0;
     
     
}