#include <stdio.h>
#include <stdint.h>
#include <string.h>

uint16_t r7;

uint16_t func1(uint16_t r0,uint16_t r1)
{
	if(!r0)
	{
                return r1+1;
	}
        if(!r1)
	{
                return func1(r0-1,r7);
	}
        return func1(r0-1,func1(r0,r1-1));
}

uint16_t func2(uint16_t r0, uint16_t r1)
{
	if(!r0)
	{
		return r1+1;
	}
	if(!r1)
	{
		return func2(r0-1,r7);
	}
	switch(r0)
        {
		case 1:
			return r1+r7+1;
		case 2:
			return r1*(r7+1)+2*r7+1;
		case 3:
			return func2(r0-1,func2(r0,r1-1));
        }
}

int main()
{
	uint16_t r0;
	uint16_t r1;
	int i;
	for(i = 1; i < 32768; i++)
	{
		r0 = 3;
		r7 = i;
		r1 = func2(r0,r7) % 32768;
		if(func2(3,r1) == 6)
		{
			printf("===FOUND VALUE===\nr0: %d\nr1: %d\nr7: %d\n\n",r0,r1,r7);
			break;
		}
	}
	return 0;
}