#include <stdio.h>

int main (void)
{
	int nbr_dec, nbr_oct, i, temp, res[3];
	
	printf("Entrer un nombre entier inferieur a 256:\n");
	scanf("%d",&nbr_dec);
	
	if(nbr_dec > 256)
		printf("le nombre est trop grand !!\n"); 
	else
	{	
		for(i=0;i<3;i++)
		{
			temp = nbr_dec/8;
			nbr_oct = nbr_dec%8;
			nbr_dec = temp;
			res[i] = nbr_oct;
			//printf("%d",nbr_oct);
		}
	}
	for(i=2;i>=0;i--)
		printf("%d",res[i]);
		printf("\n");
		
	return 0; 
}