C2122121212121133132213231313231323131323223313231322331323132321123221   >>    C212212121212113313221323131323132313132322331323132233132313232112322   <<    C2122121212121133132213231313231323131323223313231322331323132321123223   >>      C2122121212121133132213231313231323131323223313231322331323132321123222   >>