C1111133313331323223313331333133313113313113313231333132313113321   >>    C111113331333132322331333133313331311331311331323133313231311332   <<    C1111133313331323223313331333133313113313113313231333132313113323   >>      C1111133313331323223313331333133313113313113313231333132313113322   >>