program Amortization_Table;

var Month : 1..12;
    Starting_Month : 1..12;
    Balance : real;

procedure Initialize_Data;
begin
   Balance := 2500.0;
   Starting_Month := 5;
end;

procedure Print_Annual_Header;
begin
   Writeln('Annual header');
end;

procedure Calculate_And_Print;
begin
   Balance := Balance - 100.0;
   Writeln('The balance is ',Balance:8:2,' month ',Month:3);
end;

procedure Print_Annual_Summary;
begin
end;

begin
   Initialize_Data;
   repeat
     Print_Annual_Header;
     for Month := Starting_Month to 12 do begin
       Calculate_And_Print;
     end;
     Print_Annual_Summary;
     Starting_Month := 1;
   until Balance <= 0.0;
end. (* of main program *)