C2122121212121133132213231313231323131323223313231322331323211232313232221   >>    C212212121212113313221323131323132313132322331323132233132321123231323222   <<    C2122121212121133132213231313231323131323223313231322331323211232313232223   >>      C2122121212121133132213231313231323131323223313231322331323211232313232222   >>