program A01;
uses crt;
begin
clrscr;
writeln('Bieu thuc a = ', 5 * 5 * 5 + (10 - 2) * (10 - 2) - 8 + 15);
writeln('Bieu thuc b = ', (20 + 4) / (2 + 4) - 19 / (3 + 4) : 2 : 2);
writeln('Bieu thuc c = ', ((5 + 6) * (5 + 6) - 3) / (2 + 7) : 2 : 2);
readln
end.
