#include<stdio.h>
#define n 7
#define m 6

int main(){
    double a[n][m];

    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++)
            scanf("%lf", &a[i][j]);

    double s = 0;
    int count = 0;
    for (int i = 1; i < n; i += 2)
        for (int j = 0; j < m; j++){
            s += a[i][j];
            count++;
        }
    s /= count;

    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++)
            if (a[i][j] >= 2 && a[i][j] <= 7)
                a[i][j] = s;

    for (int i = 0; i < n; i++){
        for (int j = 0; j < m; j++)
            printf("%0.2lf ", a[i][j]);
    }
}