C312322331333132212111133133313331323133313221211113313122132233121   >>    C31232233133313221211113313331333132313331322121111331312213223312   <<    C312322331333132212111133133313331323133313221211113313122132233123   >>      C312322331333132212111133133313331323133313221211113313122132233122   >>