// School of Computer Engineering
// K.N. Toosi University of Technology

#include <stdio.h>

void print_integer(int);

int main() {
  print_integer(12340);
  putchar('\n');

  print_integer(-842101);
  putchar('\n');

}

void print_integer(int n) {
  if (n < 0) {
    putchar('-');
    print_integer(-n);
  }
  else if (n < 10) {
    putchar('0'+n);
    return;
  }
  else {
    print_integer(n / 10);
    putchar('0' + n % 10);
  }
}