With this you can add two binary numbers together.
Note: This circuit can only compute addition problems with solutions 15 or less. Also, the solutions are given out in Base-16.
For those who don't know Base-16:
0=0
1=1
2=2
3=3
4=4
5=5
6=6
7=7
8=8
9=9
A=10
B=11
C=12
D=13
E=14
F=15
