C3131313233313113313223313223313112113313233313133313233313231323123121   >>    C313131323331311331322331322331311211331323331313331323331323132312312   <<    C3131313233313113313223313223313112113313233313133313233313231323123123   >>      C3131313233313113313223313223313112113313233313133313233313231323123122   >>