C1111133313331323223313331333133313113313113313231333132313113311   >>    C111113331333132322331333133313331311331311331323133313231311331   <<    C1111133313331323223313331333133313113313113313231333132313113313   >>      C1111133313331323223313331333133313113313113313231333132313113312   >>