C2122121212121133132213231313231323131323223313232313232332323321   >>    C212212121212113313221323131323132313132322331323231323233232332   <<    C2122121212121133132213231313231323131323223313232313232332323323   >>      C2122121212121133132213231313231323131323223313232313232332323322   >>