C11112331333132311331333131333133313231333132212111133132313311231111   >>    C1111233133313231133133313133313331323133313221211113313231331123111   <<    C11112331333132311331333131333133313231333132212111133132313311231113   >>      C11112331333132311331333131333133313231333132212111133132313311231112   >>