C11112331333132311331333133313331333132313311211331323131232311   >>    C1111233133313231133133313331333133313231331121133132313123231   <<    C11112331333132311331333133313331333132313311211331323131232313   >>      C11112331333132311331333133313331333132313311211331323131232312   >>