C132233133112121111331333133313331333132313231332113313233212331   >>    C13223313311212111133133313331333133313231323133211331323321233   <<    C132233133112121111331333133313331333132313231332113313233212333   >>      C132233133112121111331333133313331333132313231332113313233212332   >>