Let’s just try it!!!
#include<stdio.h>
int main()
{
int a[3][3],b[3][3],c[3][3];
for(int i = 0;i < 3;++i)
for(int j = 0;j < 3;++j)
c[i][j] = 0;
printf("Enter the element of a:(3 * 3)\n");
for(int i = 0;i < 3;++i)
for(int j = 0;j < 3;++j)
scanf("%d",&a[i][j]);
printf("Stage 1:Done!!!\n");
printf("Enter the element of b:(3 * 3)\n");
for(int i = 0;i < 3;++i)
for(int j = 0;j < 3;++j)
scanf("%d",&b[i][j]);
printf("Stage 1:Done!!!\n");
for(int i = 0;i < 3;++i)
for(int j = 0;j < 3;++j)
for(int k = 0;k < 3;++k)
c[i][j] += a[i][k] * b[k][j];
printf("This is Matrix C:\n");
for(int i = 0;i < 3;++i)
{
for(int j = 0;j < 3;++j)
printf("%d ",c[i][j]);
printf("\n");
}
return 0;
}