C31232233133313221211113313331333132313331121133133313232211321   >>    C3123223313331322121111331333133313231333112113313331323221132   <<    C31232233133313221211113313331333132313331121133133313232211323   >>      C31232233133313221211113313331333132313331121133133313232211322   >>