C11111211113313112113313331333133313331122112312111133132322131122223311   >>    C1111121111331311211331333133313331333112211231211113313232213112222331   <<    C11111211113313112113313331333133313331122112312111133132322131122223313   >>      C11111211113313112113313331333133313331122112312111133132322131122223312   >>