C1111233133313231133133313231333133313113313113313331331121111131133132321   >>    C111123313331323113313331323133313331311331311331333133112111113113313232   <<    C1111233133313231133133313231333133313113313113313331331121111131133132323   >>      C1111233133313231133133313231333133313113313113313331331121111131133132322   >>