ex_1-10.c

#include <stdio.h>

int main()
{
	char c;

	while (( c = getchar()) != EOF)
	{
		if(c == '\t')
			printf("\\t");

		else if(c == '\b')
			printf("\\b");

		else if(c == '\\')
			printf("\\\\");

		else
			putchar(c);

	}
}