#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
 
 
void print_binary(uint8_t number);
 
void print_binary(uint8_t number)
{
    if (number >> 1) {
        print_binary(number >> 1);
    }
    putc((number & 1) ? '1' : '0', stdout);
}
 
int main(void) {
	print_binary(42);
	printf("\n");
	print_binary(0);
	printf("\n");
	print_binary(-12);
	printf("\n");
	return 0;
}
 

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