[p2 praktikum] 3.1.4

#include <stdio.h>
unsigned int invertuj (unsigned int x){
    unsigned maska = 1;
    for (int i = 0; i <= sizeof(int)*8; i+=3)
        x ^= maska << i;
    return x;
}
int main(){
    unsigned x;
    scanf("%u", &x);
    printf("%u", invertuj(x));
    return 0;
}