#include <iostream> using namespace st; int main(){ int n,a,i,g,s,b,q; int SUM=0; cin>>n; for(i=0;i<n;i++){ cin>>a; g=a%10; s=(a/10)%10; b=(a/100)%10; q=(a/1000)%10; if(g-q-b-s>0){ SUM++;} cout << SUM << endl;}}