Full adder:
654fc10ac35008d38879af2d3b0cf6d80aebffaeb77ef2d4ee30682ed190441411b9dfe40a9bd9935814c043468ce3f8e8a9601cfb3a7392b1a112cf703864a59b6f69d01663eb4a4ef68e108ce5efc6e5d52304c492352902bfce583cd9715e7565cb984b0a4aaff3c548fe875f3ff902
P.S: If you could add non-connected crossed wire blocks, that would make this game much more usable for semi-complex circuits. As is, I had to use the triple XOR trick to cross wires for this otherwise-simple full adder.