var a, b, c: real; begin writeln('Введите числа a, b, c'); readln(a, b, c); if a <= 0 then a:= sqr(a); if b <= 0 then b:= sqr(b); if c <= 0 then c:= sqr(c); writeln('a = ', a, ', b = ', b, ', c = ', c); end.