C312322331333132212111133133313331333131121132313231333131121133232321   >>    C31232233133313221211113313331333133313112113231323133313112113323232   <<    C312322331333132212111133133313331333131121132313231333131121133232323   >>      C312322331333132212111133133313331333131121132313231333131121133232322   >>