void main() {
    int a = 10;
    int b = a;
    a = 99;
    IO.println(a + " " + b);
}

// From Groundwork, chapter 2 (ch02-variables-and-types), box 16.
// This example is from Groundwork, licensed CC BY-NC-SA 4.0.
// Run with: java ch02_16.java