C1111133313331323223313331333133313331323131211113313112331333231221   >>    C111113331333132322331333133313331333132313121111331311233133323122   <<    C1111133313331323223313331333133313331323131211113313112331333231223   >>      C1111133313331323223313331333133313331323131211113313112331333231222   >>