#include <stdio.h>

int main() {
    int hex = 0x10;//0001 0000
    
    int dec = hex;//16  = 10000 binary

    //1<<2 -> 0000 0001 -> 0000 0100 
    
    dec = dec^(1<<4);// 1<<4 means 0001 0000 then 0001 0000 ^ 0001 0000?
    
    printf("%d",dec);
}