C11112331333132311331333131333133313231333132212111133132313311232321   >>    C1111233133313231133133313133313331323133313221211113313231331123232   <<    C11112331333132311331333131333133313231333132212111133132313311232323   >>      C11112331333132311331333131333133313231333132212111133132313311232322   >>