Program Tin_hoc;
Uses Crt;
Var N: Integer;
Begin
Write('Nhap so nguyen N');
Readln(N);
If N>0 then write(' So do la so duong ');
If N<0 then write(' So do la so am ');
If N=0 then write(' So do khong la so am va so duong');
Readln;
End.
Program Tin_hoc;
Uses Crt;
Var N: Integer;
Begin
Write('Nhap so nguyen N');
Readln(N);
If N>0 then write(' So do la so duong ');
If N<0 then write(' So do la so am ');
If N=0 then write(' So do khong la so am va so duong');
Readln;
End.