C3131313233313113313223313223313221323331323132313321323132312111   >>    C313131323331311331322331322331322132333132313231332132313231211   <<    C3131313233313113313223313223313221323331323132313321323132312113   >>      C3131313233313113313223313223313221323331323132313321323132312112   >>