void main() {
    for (int row = 1; row <= 3; row++) {
        for (int column = 1; column <= 4; column++) {
            IO.print((row * column) + " ");
        }
        IO.println();
    }
}

// From Groundwork, chapter 5 (ch05-repetition), box 6.
// This example is from Groundwork, licensed CC BY-NC-SA 4.0.
// Run with: java ch05_06.java