#include<stdio.h>

int main(){

int m,day,i,a,b,exceed;

m=day=0;

for(i=1;i<=7;i++){

scanf("%d%d",&a,&b);

exceed=a+b-8;

if(exceed>m){

m=exceed;

day=i;

}

}

printf("%d\n",day);

}

Python:

m=0;

day=0;

for i in range(1,8):

t=list(input());

exceed=int(t[0])+int(t[2])-8;

if exceed>m:

m=exceed;

day=i;

print(day,'\n');