C13223313311212111133133313331323133313331323121211113313131121211   >>    C1322331331121211113313331333132313331333132312121111331313112121   <<    C13223313311212111133133313331323133313331323121211113313131121213   >>      C13223313311212111133133313331323133313331323121211113313131121212   >>