T1972.hs:12:3:
    Warning: This binding for `name' shadows the existing binding
               defined at T1972.hs:9:19

T1972.hs:14:3:
    Warning: This binding for `mapAccumL' shadows the existing bindings
               defined at T1972.hs:16:1
               imported from Data.List at T1972.hs:7:1-16

T1972.hs:20:10: Warning: Defined but not used: `c'