#include <stdio.h>
double diagonal_average(int size, int a[size][size]) {
double cymma = 0;
for(int i = 0; i < size; i++) {
cymma += a[i][i];
}
double zhong = cymma / size;
int count =0;
for(int i = 0;i < size; i++) {
for(int j = 0; j < size; j++) {
if((double)a[i][j] - zhong - 0.001 >0) {
count++;
}
}
}
return count;
}
int main() {
int size;
scanf("%d", &size);
int a[size][size];
for(int i = 0;i < size; i++) {
for(int j = 0; j < size; j++) {
scanf("%d", &a[i][j]);
}
}
printf("%lf",diagonal_average(size, a));
return 0;
}