C31232233133313221211113313331333133313311211111323223313331323133311233131   >>    C3123223313331322121111331333133313331331121111132322331333132313331123313   <<    C31232233133313221211113313331333133313311211111323223313331323133311233133   >>      C31232233133313221211113313331333133313311211111323223313331323133311233132   >>