C232212111133133312331333133313231333132311233133313331313311231211   >>    C23221211113313331233133313331323133313231123313331333131331123121   <<    C232212111133133312331333133313231333132311233133313331313311231213   >>      C232212111133133312331333133313231333132311233133313331313311231212   >>