#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int main()
{
	int o = 0;
	int r = 0;
	int a = 0;

	while(1)
	{
		r = 0;
		scanf("%i",&a);
		while(a != 0)
		{
			o=a%2;
			a=a/2;
			r=r+1;
			if((o == 1) && (a == 1))
			{
				printf("No two in stepen");
				break;
			}
			if((o == 0) && (a == 1))
			{
				printf("two in stepen:");
				printf("%i",r);
				break;
			}
		}

		system("pause>0");
		system("cls");
	}
	return 0;
}