C1111121111331311211331333131333132313331333133313331323223313231211   >>    C111112111133131121133133313133313231333133313331333132322331323121   <<    C1111121111331311211331333131333132313331333133313331323223313231213   >>      C1111121111331311211331333131333132313331333133313331323223313231212   >>