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#include<stdio.h>
#include<malloc.h>
#include<stdlib.h>
void print_matrix(int** matr, int n, int m);
int** create_matrix(int n, int m);
void free_matrix(int** matr, int n, int m);
void srand_matrix(int** matr, int n, int m);
void scan_matrix(int** matr, int n, int m);

int main()
{
    int n,m;
    scanf("%d",&n);
    scanf("%d", &m);
    if(m>50 || n<2)       // matrix size is incorrect
    {
        printf("Incorrect size\n");
    }

   int**  matr=create_matrix(n,m);
    scan_matrix(matr, n, m);


    for(int i=0; i<n; i++)
    {
        for(int j=0; j<m; j++)
        {
            if (i==j && matr[i][j]*matr[i][j]!=1)
            {
                printf("Matrix is no ortonorm\n");
                break;
            }
            if(i != j && matr[i][j]*matr[i][j]!=0)
            {
                 printf("Matrix is no ortonorm\n");
                 break;
            }
        }
    }

    return 0;
}

int** create_matrix(int n, int m)
{
    int **matr = malloc(n*sizeof(int *));
    for (int i = 0; i<n; i++)
    {
        matr[i]=malloc(m*sizeof(int));
    }
    return (matr);
}

void scan_matrix(int** matr, int n, int m)
{
    for(int i=0; i<n; i++)
    {
        for(int j=0; j<m; j++)
        {
            scanf("%d", &matr[i][j]);
        }
    }
}

void srand_matrix(int** matr, int n, int m)
{
    for(int i=0; i<n; i++)
    {
        for(int j=0; j<m; j++)
        {
            matr[i][j] = rand()%50;
        }
    }
}

void print_matrix(int** matr, int n, int m)
{
    for(int i=0; i<n; i++)
    {
        for(int j=0; j<m; j++)
        {
            printf("%d", matr [i] [j]);
        }
        puts(" ");
    }
}

void free_matrix(int** matr, int n, int m)
{
    for(int i=0; i<n; i++)
    {
        free(matr[i]);
    }
    free(matr);
}