C3123213231313231312323132313231333131323223313232213113313233313232211321   >>    C312321323131323131232313231323133313132322331323221311331323331323221132   <<    C3123213231313231312323132313231333131323223313232213113313233313232211323   >>      C3123213231313231312323132313231333131323223313232213113313233313232211322   >>