#include <stdio.h>


void sort(int ten[])
{
  int i,j,temp;
  
  for(i=0;i<6;i++){
    for(j=5;j>i;j--){
      if(ten[i] > ten[j]){
	temp = ten[i];
	ten[i] = ten[j];
	ten[j] = temp;
      }
    }
  }
}

int main(void)
{
  int a,b,c,d,e,f;
  int ten[6];
  double ans;
  int i;
  
  scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f);
  // scanf("%d", &b);
  // scanf("%d", &c);
  // scanf("%d", &d);
  //scanf("%d", &e);
  //scanf("%d", &f);
  
  ten[0] = a;
  ten[1] = b;
  ten[2] = c;
  ten[3] = d;
  ten[4] = e;
  ten[5] = f;

  sort(ten);
  
  for(i=0;i<6;i++){
    printf("%d\n", ten[i]);
  }

  ans = (double)(ten[1]+ten[2]+ten[3]+ten[4])/4.0;


  printf("%.2f\n", ans);

  return 0;
}