C1212122313132322331313232233132313231323133313232213231323132321   >>    C121212231313232233131323223313231323132313331323221323132313232   <<    C1212122313132322331313232233132313231323133313232213231323132323   >>      C1212122313132322331313232233132313231323133313232213231323132322   >>