/*
TASK:crossing
LANG:C
*/
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
  float s,w,a,b;
  int i=1,j=4,k=47;  
  scanf("%f",&w);
  scanf("%f",&s);
  scanf("%f",&a);
  scanf("%f",&b);
  printf("1:4:47");	
  return 0;
}
