#include <stdio.h>
#include <stdlib.h>

int main(){
    int square_size;
    printf("Square size (intiger): ");
    scanf("%d", &square_size);

    int a_number;
    a_number = square(square_size);
    printf("%d of A in matrix", a_number);
    return 0;
}

int square(int sq_size){
    int counter = 0;
    for(int j = 1; j <= sq_size; j++)
        {
          for(int i = 1; i <= sq_size; i++)
            if((j == 1) || (j == sq_size) ||  //horizontal
               (i == 1) || (i == sq_size) ||  //verical
               (j == i) ||                    //1st diagonal
               (j == sq_size+1 - i))          //2nd diagonal
               {
               printf("A");
               counter += 1;
               }

            else                          printf(".");
          printf("\n");
        }
    return counter;
}