class Expr0 {
public static void main(String[] args) {
int x = 0;
if (x++ == 0) {
System.out.println(x);
}
System.out.println(x);
int y = 0;
if (++y == 1) {
System.out.println(y);
}
System.out.println(y);
int z = 0;
if (--z == -1) {
System.out.println(z);
}
System.out.println(z);
int w = 0;
if (w-- == 0) {
System.out.println(w);
}
System.out.println(w);
for (int i = 0; i<3; ++i) {
System.out.println(i);
}
}
}