// Copyright (c) 1995, Masanao Izumo

x = 2;
writeln(x);

module mod
{
    writeln(x);
    x = 100;
    writeln(x);
}

writeln(x);

module foo
{
    writeln(x);
    x = 200;
    writeln(x);
}

module mod
{
    writeln(x);
}

writeln(x);