#include <stdio.h>

#define POWER2(x)   ((x)*(x));
#define MIN(x,y)    ((x) < (y) ? (x) : (y))

int square(int x) {
  if (x < 0) {
    return -1;
  }

  int result = 0;
  for (int i = 0; i < x; i++) {
    result += POWER2(x-i);
  }
  return result;
}

int rectangle(int x, int y) {
  if (x < 0 || y < 0) {
    return -1;
  }
  
  int result = 0;
  for (int i = 0; i <= MIN(x,y); i++) {
    result += (x-i)*(y-i);
  }
  return result;
}

int cube(int x) {
  if (x < 0) {
    return -1;
  }

  return 3 * (x+1) * square(x);
}

int cuboid(int x, int y, int z) {
  if (x < 0 || y < 0 || z < 0) {
    return -1;
  }

  return (z+1) * rectangle(x,y) + (y+1) * rectangle(x,z) + (x+1) * rectangle(y,z);
}

int main() {
  printf("%d\n", square(3));
  printf("%d\n", rectangle(3,4));
  printf("%d\n", cube(3));
  printf("%d\n", cuboid(3,4,5));
  return 0;
}