C11112331333132311331333132313331323133313132313212111133112131   >>    C1111233133313231133133313231333132313331313231321211113311213   <<    C11112331333132311331333132313331323133313132313212111133112133   >>      C11112331333132311331333132313331323133313132313212111133112132   >>