#include<stdio.h>

int tetragwno1(int a);

int dunami1(int x);

int tetragwno1(int a)
{ int sq;
  sq=a*a;
  return sq;}

int dunami1(int x)
{ int dun;
  dun=x*x*x;
  return dun;}

main()
{ int num;
  printf("dwse ena arithmo:");
  scanf("%d",&num);
  printf("to tetragwno tou arithmou %d einai %d\n",num,tetragwno1(num));
  printf("o arithmos %d stin triti dunami einai %d\n",tetragwno1(num),dunami1(tetragwno1(num)));
}