/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		for(long i=1;i++<65;){
			f(i);
		}
	}
 
	static void f(long n){
        for(int i=-1;i++<31;){
             for(int j=0;j++<34;){
              	long a=1;
                if(a<<i+a<<j==n|(a<<j)-(a<<i)==n){
                	System.out.println(n+": "+j+","+i);
            		return;
            	}
            }
        }
    }
}

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