var r,pi,a,b,c: Integer;
begin
write('r= '); readln(r);
writeln('lungimea cercului= ',2*pi*r,' Aria cercului= ', pi*r*r);
write('a= '); readln(a);
write('b= '); readln(b);
writeln('Aria dreptunghiului= ',a*b);
write('a= '); readln(a);
write('b= '); readln(b);
write('c= '); readln(c);
writeln('Volumul paralelipipedului= ',a*b*c);
end.