#include<bits/stdc++.h> using namespace std; int main() { int a = 0; int n; cin >> n; int x; for (int i = 1; i <= n; i++) { cin >> x;//1234 int ge = x % 10;// 4 int shi = x % 100 / 10; //34 int bai = x % 1000 / 100; //234 int qian = x / 1000; //1234 if (ge - shi - bai - qian > 0) { a++; } } cout << a; return 0; }