Penjumlahan Matriks 2x2 di Microsoft Visual C++

#include <stdio.h>

int i,j,m,n;

int a[5][5];

int b[5][5];

main()

{

            m=2;

            n=2;

            for(i=0;i<n;i++)

            {

                        for(j=0;j<m;j++)

                        {

                                                printf("a [%i] [%i] = ",i+1,j+1);

                                                scanf("%i",&a[i][j]);

                        }

            }

            printf("\n      +\n\n");

            for(i=0;i<n;i++)

            {

                        for(j=0;j<m;j++)

                        {

                                                printf("b [%i] [%i] = ",i+1,j+1);

                                                scanf("%i",&b[i][j]);

                        }

            }

            printf("\n\n\n");

            for (i=0;i<n;i++)

            {

                        for (j=0;j<m;j++)

                        {

                                    printf("%6d",a[i][j]);

                        }

                        printf("\n");

            }          

            printf("        +\n");

            for (i=0;i<n;i++)

            {

                        for (j=0;j<m;j++)

                        {

                                    printf("%6d",b[i][j]);

                        }

                        printf("\n");

            }

            printf("        =\n");

            for (i=0;i<n;i++)

            {

                        for (j=0;j<m;j++)

                        {

                                    printf("%6d",a[i][j]+b[i][j]);

                        }

                        printf("\n");

            }

            printf("\n");

}