C11112331333132311331333133313331333132313311211331323221211112111   >>    C1111233133313231133133313331333133313231331121133132322121111211   <<    C11112331333132311331333133313331333132313311211331323221211112113   >>      C11112331333132311331333133313331333132313311211331323221211112112   >>