#include <stdio.h>
 
int main() {
 
    int n;
    scanf("%d", &n);
 
    int elem, a = 0, b = 0, ok = 1;
    for (int i = 0; i < n; i++) {
        int c = 0;
        for (int j = 0; j < n; j++) {
            scanf("%d", &elem);
            if (i == j) b += elem;
            if (i == 0) a += elem;
            c += elem;
        }
        if (a != c) ok = 0;
    }
    if (a != b) ok = 0;
 
    if (ok) {
        printf("Quadrado misterioso com soma %d.", a);
    } else {
        printf("Não é um quadrado misterioso.");
    }
    return 0;
}

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3
2 7 11
9 5 6
4 3 13