Matrix Addition in C

//Program to add two matrices

#include<stdio.h>

#include<conio.h>

void main()

{

 int i,j,a[3][3],b[3][3];

 clrscr();

//Entry of elements of first matrix

 printf("Enter the elements of first matrix\n");

 for(i=1;i<=3;i++)

 {

  for(j=1;j<=3;j++)

  {

   scanf("%d",&a[i][j]);

  }

 }

//First Matrix

 printf("First Matrix is\n");

 for(i=1;i<=3;i++)

 {

  for(j=1;j<=3;j++)

  {

   printf("\t%d",a[i][j]);

  }

  printf("\n\n");

 }

//Entry of elements of second matrix

 printf("Enter the elements of second matrix\n");

 for(i=1;i<=3;i++)

 {

  for(j=1;j<=3;j++)

  {

   scanf("%d",&b[i][j]);

  }

 }

//Second Matrix

 printf("Second Matrix is\n");

 for(i=1;i<=3;i++)

 {

  for(j=1;j<=3;j++)

  {

   printf("\t%d",b[i][j]);

  }

  printf("\n\n");

 }

//Addition of Matrices

 printf("After Addition the matrix is\n");

 for(i=1;i<=3;i++)

 {

  for(j=1;j<=3;j++)

  {

   printf("\t%d",a[i][j]+b[i][j]);

  }

  printf("\n\n");

 }

 getch();

}