C3312121121131323133313133313112113313223313232213133313132322121   >>    C331212112113132313331313331311211331322331323221313331313232212   <<    C3312121121131323133313133313112113313223313232213133313132322123   >>      C3312121121131323133313133313112113313223313232213133313132322122   >>