#include<stdio.h>

#include<stdlib.h>

#include<time.h>

#include<string.h>

void main()

{

    

int a[4][4];

    

int b[4][4];

    

int c[4][4];

    

int i,j,k,s,t,m,n;

    

srand(time(0));

    

for(i=0;i<=3;i++)

        

for(j=0;j<=3;j++)

            

a[i][j]=rand()%20+1;

                

printf("a is \n");

                

for(i=0;i<=3;i++)

                

{

                 

                    

for(j=0;j<=3;j++)

                         

                         

                            

printf("%5d",a[i][j]);

                                

printf("\n");

                                    

printf("\n");

            

}

                         

                            

for(i=0;i<=3;i++)

                            

for(j=0;j<=3;j++)

                                

b[i][j]=rand()%20+1;

                                

printf("b is \n");

                                            

for(i=0;i<=3;i++)

                                            

{

                                             

                                            

for(j=0;j<=3;j++)

                                             

                                                 

                                                

printf("%5d",b[i][j]);

                                                    

printf("\n");

                                                        

printf("\n");

                                            

}

                                                

for(i=0;i<=3;i++)

                                                    

for(j=0;j<=3;j++)

                                                        

c[i][j]=a[i][j]+b[i][j];

                                                            

printf("c is \n");

                                                             

                                                                

for(i=0;i<=3;i++)

                                            

{

                                             

                                            

for(j=0;j<=3;j++)

                                             

                                                 

                                                

printf("%5d",c[i][j]);

                                                    

printf("\n");

                                                        

printf("\n");

                                            

}

                                            

int z;

                                            

z=0;

                                    

printf("a is \n");

                                        

for(i=0;i<=3;i++)

                

{

                 

                    

for(j=0;j<=3;j++)

                         

                         

                            

printf("%5d",a[i][j]);

                                

printf("\n");

                                    

printf("\n");

            

}

 

                            

int my=0;

                            

int sb=0;

                            

k=0;

                            

int jsq=0;

                                                            

printf("my is : \n");

                                    

for(k=0;k<=3;k++)

                                    

{

                                        

for(i=0;i<=3;i++)

                                    

{

                                     

                                    

for(j=0;j<=3;j++)

                                    

{

                                 

                                    

sb=a[k][j]*b[j][i];

                                    

my=my+sb;

                                     

                                    

}

                                    

c[k][i]=my;

         

                                    

printf("%5d",c[k][i]);

                                    

jsq++;

                                    

if(jsq%4==0)

                                    

printf("\n");

                                    

my=0;

                                

}

                            

}

                                    

                

                             

}