C11111211113313112113313331333133313331122112312111133132323231323321   >>    C1111121111331311211331333133313331333112211231211113313232323132332   <<    C11111211113313112113313331333133313331122112312111133132323231323323   >>      C11111211113313112113313331333133313331122112312111133132323231323322   >>