man!what can i say

#include<bits/stdc++.h>
using namespace std;
int main(){
    int man,whatcanisay,max=-1,max_day=-1;
    for(int i=1;i<=7;i++){
        cin>>man>>whatcanisay;
        if(man+whatcanisay>8&&man+whatcanisay>max){
            max=man+whatcanisay;
            max_day=i;
        }
    }
    if(max_day==-1){
        cout<<0;
    }else{
        cout<<max_day<<endl;
    }
    return 0;
}