#include <stdio.h>
#define MAX 20

void leeM (int [][MAX], int, int);
void escribeM (int [][MAX], int, int);
void suma (int [][MAX], int [][MAX], int [][MAX], int, int);

main ()
{
     int A[MAX][MAX], B[MAX][MAX], C[MAX][MAX];
     int n, m;
     
     printf ("\nNumero de filas: ");
     scanf ("%d",&n);
     printf ("\nNumero de columnas: ");
     scanf ("%d",&m);
     
     printf ("\nDame la matriz A: \n");
     leeM(A,n,m);
     printf ("\nDame la matriz B: \n");
     leeM(B,n,m);
     
     printf ("\nLa matriz A es: ");
     escribeM(A,n,m);
     printf ("\nLa matriz B es: ");
     escribeM(B,n,m);
     
     printf("\nLa suma es: ");
     suma(A,B,C,n,m);
     escribeM(C,n,m);
     
     getchar();
     getchar();
}

void leeM(int A[][MAX], int f, int c)
{
     int i, j;
     
     for (i=0; i<f; i++)
        for (j=0; j<c; j++)
            scanf ("%d",&A[i][j]);
}

void escribeM(int M[][MAX], int f, int c)
{
     int i, j;
     
     for (i=0; i<f; i++)
       {
        printf ("\n");
        for (j=0; j<c; j++)
            printf  ("   %d",M[i][j]);
       }
}

void suma (int M1[][MAX], int M2[][MAX], int R[][MAX], int n, int m)
{
      int i, j;
     
     for (i=0; i<n; i++)
        for (j=0; j<m; j++)
            R[i][j] = M1[i][j] + M2[i][j];
}