#include <cstdio>
#include <vector>

#define NMAX 100007

using namespace std;

int v[7][7][7], a[NMAX], b[NMAX], c[NMAX];
int n, Ans;

int main(){
    freopen("puteri.in", "r", stdin);
    freopen("puteri.out", "w", stdout);
    scanf("%d", &n);
    for(int i = 1; i <= n; ++i){
        scanf("%d %d %d", &a[i], &b[i], &c[i]);
        ++v[a[i] % 2][b[i] % 2][c[i] % 2];
    }
    for(int i = 1; i <= n; ++i)
        Ans += v[a[i] % 2][b[i] % 2][c[i] % 2];
    printf("%d", Ans / 2);
}