C31232233133313221211113313331323133313233313233313231323132121   >>    C3123223313331322121111331333132313331323331323331323132313212   <<    C31232233133313221211113313331323133313233313233313231323132123   >>      C31232233133313221211113313331323133313233313233313231323132122   >>