R> val = 12
1> Changing val to 15
2> Changing val to 22
3> Changing val to 39
1> Changing val to 42
2> Changing val to 49
3> Changing val to 66
1> Changing val to 69
2> Changing val to 76
3> Changing val to 93
1> Changing val to 96
2> Changing val to 103
2> Done.
3> Changing val to 120
3> Done.
1> Changing val to 123
1> Done.
R> val = 123
