#include <stdio.h>
 
int main(void) {
    int a = 10;
    int b = 20;
    int *p = &a;
 
 
   *p = &b;
    return 0;
}
 
				I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CiAgICBpbnQgYSA9IDEwOwogICAgaW50IGIgPSAyMDsKICAgIGludCAqcCA9ICZhOwoKICAgIHByaW50ZigiKnAgPSAlZFxuIiwgKnApOwoKICAgKnAgPSAmYjsKICAgIHByaW50ZigiICVkXG4iLCAqcCk7CiAgICByZXR1cm4gMDsKfQo=