#include <stdio.h>
#include <stdlib.h>
#define row 3
#define column 3

void main()
{
     int A[row][column], B[row][column], C[row][column];
     int i,j,k;
	 int choice;

         for (i=0;i<3;++i)
         {
            for (j=0;j<3;++j)
			 {
				printf("enter values in matrix A");
				scanf("%d",&A[i][j]);
             }
         }

         for (i=0;i<3;++i)
         {
           for (j=0;j<3;++j)
		   {
             printf("enter values in matrix B");
             scanf("%d",&B[i][j]);
           }
		 }


             printf("choose one of the following:\n");
			 printf("1. ADDITION:\n");
			 printf("2. SUBSTRACTION:\n");
			 printf("3. MULTIPLICATION:\n");

			 printf("%d",choice);
			scanf("%d",&choice);

             if(choice==1)
			 {
				 //ADDITION
				 for (i=0;i<3;++i)
					{
						for (j=0;j<3;++j)
						{
							C[i][j]=A[i][j]+B[i][j];
						}
					}
			 }

             else if(choice==2)
			 {
				 //SUBSTRACTION
				 for (i=0;i<3;++i)
				 {
					for (j=0;j<3;++j)
					{
						C[i][j]=A[i][j]+B[i][j];
   					}
				 }
			 }

			 else if(choice==3)
			 {
				 //MULTIPLICATION

				 for (i=0;i<3;++i)
				 {
					for (j=0;j<3;++j)
					{
						C[i][j]=0;

						for (k=0;k<3;++k)
							C[i][j]=C[i][j]+(A[i][j]*B[i][j]);
					}
				 }
			 }

			 else
			 if (choice==4)
				printf("Invalid Operation:\n");
}


			  //RESULT

              /*printf("the resultant matrix is C",C);
              for (i=0;i<3;++i)
              {
               for (j=0;j<3;++j)
               {
                   C[i][j]
                printf("C is %s",C);
                }
                }
                system("pause");
                }*/