C11111211113313112113313331333133313331122112312111133132322321133112111   >>    C1111121111331311211331333133313331333112211231211113313232232113311211   <<    C11111211113313112113313331333133313331122112312111133132322321133112113   >>      C11111211113313112113313331333133313331122112312111133132322321133112112   >>