#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,c,sum=0; cin>>a; for(int i=1;i<=a;i++){ cin>>c; int g=c%10; int s=c/10%10; int b=c/100%10; int p=c/1000%10; if(g>p+b+s){ sum+=1; } } cout<<sum; return 0; }