C11111333133313232233133313331333133112323131121211113313232113311231   >>    C1111133313331323223313331333133313311232313112121111331323211331123   <<    C11111333133313232233133313331333133112323131121211113313232113311233   >>      C11111333133313232233133313331333133112323131121211113313232113311232   >>