C1111233133313231133133313331333133313231331133133313113313132323321   >>    C111123313331323113313331333133313331323133113313331311331313232332   <<    C1111233133313231133133313331333133313231331133133313113313132323323   >>      C1111233133313231133133313331333133313231331133133313113313132323322   >>