C11112331333132311331333133313331333132313311211331323221211111313231322321   >>    C1111233133313231133133313331333133313231331121133132322121111131323132232   <<    C11112331333132311331333133313331333132313311211331323221211111313231322323   >>      C11112331333132311331333133313331333132313311211331323221211111313231322322   >>