C program to find sum and difference of two matrices

#include <stdio.h>
int main()
{
int i,j,r1,c1, a[10][10], b[10][10];
printf("Enter Order of Matrix A & B: ");
scanf("%d %d", &r1, &c1);
printf("Enter Elements of Matrix of A: \n");
for( i=0; i< r1; i++)
{
for( j=0; j<c1; j++)
scanf("%d", &a[ i ][ j ]);
}
printf("Enter Elements of Matrix of B: \n");
for( i=0; i< r1; i++)
{
for( j=0; j < c1; j++)
scanf("%d", &b[ i ][ j ]);
}
printf("\n Matrix Addition \n");
for( i=0; i< r1; i++)
{
for( j=0; j < c1; j++)
printf("%d\t", a[ i ][ j ] + b[ i ][ j ]);
printf ("\n");
}
printf("\nMatrix Subtraction/Difference \n");
for( i=0; i< r1; i++)
{
for( j=0; j < c1; j++)
printf("%d\t", a[ i ][ j ] - b[ i ][ j ]);
printf("\n");
}
}

Output: