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program metric_to_imperial;

(* This program takes any given weight (in grams) and converts it
   into the relevent number of tons, stones, pounds and ounces *)

const GRAM_TO_OUNCE = 0.035;

type IMPERIAL = (ton, stone, pound, ounce);

var Ounces, Number:  ARRAY[ton..ounce] of INTEGER;
    Metric_Weight: REAL;
    Imperial_Weight: INTEGER;
    Unit: IMPERIAL;

procedure Initialise_Array;
begin
  Ounces[ton]:=2000;
  Ounces[stone]:=16*14;
  Ounces[pound]:=16;
  Ounces[ounce]:=1;
end;

procedure List_Units;
begin
  WriteLn ('tons:   ',Number[ton]);
  WriteLn ('stones: ',Number[stone]);
  WriteLn ('pounds: ',Number[pound]);
  WriteLn ('ounces: ',Number[ounce]);
end;

begin (* main *)
  Initialise_Array;
  ClrScr; Write ('Enter weight (in grams): '); ReadLn (Metric_Weight);
  Imperial_Weight:=Round(Metric_Weight*GRAM_TO_OUNCE);
  for Unit:=ton to ounce do
  begin
    Number[Unit]:=Imperial_Weight DIV Ounces[Unit];
    Imperial_Weight:=Imperial_Weight MOD Ounces[Unit];
  end;
  List_Units;
end. (* main *)