F 0
s 4 START END CONNECT DISCONNECT
i 2 INPUT-1 INPUT-2
o 2 OUTPUT-1 OUTPUT-2
n0 START
p 8
START INPUT-1 DISCONNECT OUTPUT-1
START INPUT-2 START OUTPUT-2
END INPUT-1 START OUTPUT-2
END INPUT-2 START OUTPUT-1
CONNECT INPUT-1 START OUTPUT-1
CONNECT INPUT-2 DISCONNECT OUTPUT-1
DISCONNECT INPUT-1 CONNECT OUTPUT-1
DISCONNECT INPUT-2 END OUTPUT-1