C11112331333132311331333133313331333132313311211331323133313331211233131   >>    C1111233133313231133133313331333133313231331121133132313331333121123313   <<    C11112331333132311331333133313331333132313311211331323133313331211233133   >>      C11112331333132311331333133313331333132313311211331323133313331211233132   >>