C1111133313331323223313331333133313231323112113313311231323132313231121   >>    C111113331333132322331333133313331323132311211331331123132313231323112   <<    C1111133313331323223313331333133313231323112113313311231323132313231123   >>      C1111133313331323223313331333133313231323112113313311231323132313231122   >>