C1111233133313231133133313331333133313231331133133313231323132321122321   >>    C111123313331323113313331333133313331323133113313331323132313232112232   <<    C1111233133313231133133313331333133313231331133133313231323132321122323   >>      C1111233133313231133133313331333133313231331133133313231323132321122322   >>