2d array sum in c programming.c

#include<stdio.h>  
void main()  
{           
    int r1, r2, c1, c2;  
    int i,j;   
    int arr1[5][5], arr2[5][5];  
    int sub_array[5][5]; 


    //First_Array

    printf("\nEnter the row and column of 1st matrix: ");  
    scanf(" %d %d", &r1, &c1);  

    printf("\nEnter the elemets of 1st array: ");  
    for(i=0;i<r1; i++) 
    {  
        for(j=0; j<c1; j++)  
        {
            scanf("%d", &arr1[i][j]);  
        }
    }  
    printf("\nThe matrix of 1st array is: ");  
    for(i=0;i<r1; i++) 
    {
        printf("\n"); 
        for(j=0; j<c1; j++)  
        {
            printf("%d\t", arr1[i][j]);  
        }
    }
    //Second_Array

    printf("\n\nEnter the row and column of 2nd matrix: ");  
    scanf(" %d %d", &r2, &c2);  

    printf("\nEnter the elements of 2nd array: "); 
    for(i=0;i<r1; i++)  
    {
        for(j=0; j<c1; j++)   
        {
            scanf("%d", &arr2[i][j]);  //scanf for taking 2nd array's elements from user
        }
    }
    printf("\nThe matrix of 2nd array is: ");   
    for(i=0;i<r1; i++)  
    {
        printf("\n");   
        for(j=0; j<c1; j++)   
        {
            printf("%d\t", arr2[i][j]); 
        }
    }

    //Sub_Array
    for(i=0;i<r1; i++)  
    {
        for(j=0; j<c1; j++)   
        {
            sub_array[i][j]=arr1[i][j]-arr2[i][j];  
        }
    }
    printf("\n\nThe matrix of substruction of array is: ");   
    for(i=0;i<r1; i++)  
    {
        printf("\n");  
        for(j=0; j<c1; j++)  
        {
            printf("%d\t", sub_array[i][j]);  
        }
    }
}