#include<bits/stdc++.h> using namespace std; int main(){ int a,g,s,b,q,yes=0; cin>>a; int y; for(int i=0;i<a;i++){ cin>>y; g=y%10; s=(y-g)/10%10; b=(y-g-s)/100%10; q=(y-g-s-b)/1000; if(g>s+b+q){ yes++; } } cout<<yes; return 0; }