#include <iostream> #include <cstdio> using namespace std; int main() { int x,s,a,max=0,max_day=0; for(int i=1; i<=7; i++) { cin >> x >> s; a = x + s; if(a - max < 8) { if(max < a - 8) { max = a - 8; max_day = i; } } } if(max_day == 0)cout << "00"; else cout<< max_day; return 0; }