// This is showing:
//
// global
// outer
// inner
// outer
// global

var a = "global";
{
    print "in outer block: " + a;
    var a = "outer";
    {
        print "in inner block: " + a;
        var a = "inner";
        print "in inner block: " + a;
    }
    print "in outer block: " + a;
}
print "global: " + a;