C111113331333132322331333133313331333133313121111331333132313113313231323221231   >>    C11111333133313232233133313331333133313331312111133133313231311331323132322123   <<    C111113331333132322331333133313331333133313121111331333132313113313231323221233   >>      C111113331333132322331333133313331333133313121111331333132313113313231323221232   >>