# include & ltstdlib.h & gt
int main()
{
int i,j,m=0,a[3][3];
Printf ("Please enter 9 integers \ n");
for(I = 0; I<3; i++)
for(j = 0; j & lt3; j++)
scanf("%d ",& ampa[I][j]);
for(I = 0; I<3; i++)
for(j = 0; j & lt3; j++)
if(I = = j)m+= a[I][j];
Printf ("The sum of diagonal elements is: %d\n", m);
System ("suspended");
Returns 0;
}