big-big,small-small

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,m,a,b;
    cin>>n>>m>>a>>b;
    int sum=0;
    while(!((min(m,n)<min(a,b))||(max(m,n)<max(a,b)))){
        if(n>=m){
            n-=max(a,b);
            m-=min(a,b);
        }else{
            m-=max(a,b);
            n-=min(a,b);
        }
        sum++;
    }
    cout<<sum;
    return 0;  
}