C13223313311212111133133313331333133313231323133211331333112121111   >>    C1322331331121211113313331333133313331323132313321133133311212111   <<    C13223313311212111133133313331333133313231323133211331333112121113   >>      C13223313311212111133133313331333133313231323133211331333112121112   >>