what_it_prints_out.c

#include <stdio.h>

int main(){
    int i,a=0;
    
    for( i=0; i<3; i++){
        if(i%3)
            if(i%2)
                printf("%d\n", (a = a+=2) );
        else
            printf("%d\n", (a = a++) );
    }
    
    return 0;
}