#!/usr/local/bin/rune -x
#

import "sys";
import <stdio>;

int
main(int ac, string_p *av)
{
    int i;

    stdio.stdout->format("should show BC,DEFGJDK: ");
    {
	BLOCK1 {
	    break BLOCK1;
	    stdio.stdout->format("A");
	}
	stdio.stdout->format("B");
    }
    stdio.stdout->format("C,");

    i = 0;
    BLOCK0 {
	stdio.stdout->format("D");
	if (++i == 2)
	    break block;
	stdio.stdout->format("E");
	BLOCK1 {
	    stdio.stdout->format("F");
	    BLOCK2 {
		stdio.stdout->format("G");
		if (i == 1)
		    break BLOCK1;
		stdio.stdout->format("H");
	    }
	    stdio.stdout->format("I");
	}
	stdio.stdout->format("J");
	continue BLOCK0;
    }
    stdio.stdout->format("K");
    stdio.stdout->format("\n");
    if (--ac > 0)
	continue procedure;

    return(0);
}