var a,b: real;
begin
write('Nhap a,b: '); readln(a,b);
if a < b then writeln(a:5:2) else if a > b then writeln(b:5:2) else writeln('Khong co');
end.
uses crt;
var a,b:real;
begin
clrscr;
repeat
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
until a<>b;
if a<b then writeln('So nho nhat la: ',a:4:2)
else writeln('So nho nhat la: ',b:4:2);
readln;
end.