#include <stdio.h>

int main(void)
{
  int x[1000];
  int xlen = 0;
  int n;
  int i;
  int j;

  while (scanf("%d",&n) == 1)
    if (xlen < 1000) {
      x[xlen] = n;
      ++xlen;
    }

  while (xlen > 0) {
    i = 0;
    for (j = 1;j < xlen;++j)
      if (x[j] < x[i])
	i = j;
    printf("%d\n",x[i]);
    --xlen;
    x[i] = x[xlen];
  }

  return 0;
}