#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 x,a,sum=0; cin>>x; for(int y=1;y<=x;y++){ cin>>a; int g,s,b,q; g=a%10; s=a/10%10; b=a/100%10; q=a/1000; if(g>s+b+q){ sum+=1; } } cout<<sum; return 0; }