Blobby and the Blobbylings

BLOBBY Blobby is the proud father of his blobbyling. The only problem is that all blobbylings look the same, so he tends to lose him easily in the crowd...GOALBy applying simple maths, you need to end up with one blobbyling after going through all the doors. Pay attention to the information provided by the environment, you wouldnt want to lose you own blobbyling permanently...