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  1. preved(N) :- prev(N,N,V).
  2. prev(N,N,V) :- write(V).
  3. prev(N,Z,V) :- Z2 is Z//2, X is Z mod 2, prev(N,Z2,[X|V]).
Success #stdin #stdout 0.02s 6204KB
stdin
1
2
10
9
0
10
42
stdout
Standard output is empty