#include <vector>
#include <stdio.h>
#include <cstdlib>
#include <ctime>

typedef unsigned int ui;

double a, b, c, i, j, pivot;
double mediana(double a, double b, double c)
{
  if((c<=a && b>=a) || (c>=a && b<=a) ) return a;
  if((c<=b && a>=b) || (b>=a && b<=c) ) return b;
  return c;
}

void swap(double & a, double & b)
{
  double tmp=a;
  a=b;
  b=tmp;
}

inline static void mysort(std::vector<double> & array, ui left, ui right)
{
  i=left;
  j=right;
  srand((unsigned)time(NULL));
  a=(rand()%right-left-1)+left;
  b=(rand()%right-left-1)+left;
  c=(rand()%right-left-1)+left;
  pivot=mediana(a, b, c);

  while(i<j)
    {
      while(array[i]<pivot)
        i++;
      while(array[j]>pivot)
        j--;
      if(i<=j)
        swap(array[i], array[j]);
      if(left<j) mysort(array, left, j);
      if(i<right) mysort(array, i, right);
    }
}

int main()
{
  std::vector<double> nono;
  double tmp;
  for(int i=0;i!=2;i++)
    {
      scanf("%lf", &tmp);
      nono.push_back(tmp);
    }
  mysort(nono, 0, nono.size());
  for(std::vector<double>::iterator it=nono.begin();it!=nono.end();it++)
    printf("%lf", *it);
  return 0;
}