var
A, B, C: Integer;
begin
A := 3;
B := 5;
C := 7;
//parentheses are required: "and"
//binds tighter than comparisons
if (C >= A) and (C >= B) then
WriteLn('nothing is larger than C');
if not ((A >= B) or (A >= C)) then
WriteLn('A is the smallest');
end.