/*  Launo Tuuri --- C-ohj (Taina) s97 --- Laskarit / tehtävä:  2 / 3  */

#include <stdio.h>

int main()
{
	int c;
	while ((c = getchar()) != EOF)
	{
		if (c > 31)
			putchar(c);
		else
			switch(c)
			{
				case '\a':
					printf("\\a");
					break;
				case '\b':
					printf("\\b");
					break;
				case '\f':
					printf("\\f");
					break;
				case '\n':
					printf("\\n");
					break;
				case '\r':
					printf("\\r");
					break;
				case '\v':
					printf("\\v");
					break;
				default:
					printf("\\0");
					printf("%d", (c%64)/8);
					printf("%d", c%8);
			}
	}
	return 0;
}