#include <stdio.h>
#include <stdint.h>
int main(void) {
uint8_t a = 0;
uint8_t b = 0x1f;
uint8_t fifo_size = 32;
uint8_t c = (a - b) % fifo_size;
uint8_t d = c % 32;
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxzdGRpbnQuaD4KCmludCBtYWluKHZvaWQpIHsKCXVpbnQ4X3QgYSA9IDA7Cgl1aW50OF90IGIgPSAweDFmOwoJdWludDhfdCBmaWZvX3NpemUgPSAzMjsKCXVpbnQ4X3QgYyA9IChhIC0gYikgJSBmaWZvX3NpemU7Cgl1aW50OF90IGQgPSBjICUgMzI7CglwcmludGYoIiV1XG4iLCBjKTsKICAgIHByaW50ZigiJXVcbiIsIGQpOwoKCXJldHVybiAwOwp9Cg==