#ifdef CHANGED
#include "syscall.h"

void f(int c) {
    /* Since our stack is shared with other threads, we've got
     * a problem here, when executing a thread there is not 8 iterations.
     * This is like synchronisation */
    volatile int i;
    for (i=0;i<16;i++){
        PutChar((char)c);
    }
    ThreadExit();
}

int main(){
    int i;
    for (i=65; i < 68; i++){
        ThreadCreate(f, i);
    }
    // PutString("end of main()\n");
    ThreadExit();
    //return 0;
}
#endif