Float a,b,c,d;
// сканирование
if(a>c)
if(b>d)
printf("da");
else if(a>d)
if(b>c) printf("da");
esle printf("net");
else printf("net");
#include <iostream>
#include <cmath>
int main()
{
#define _USE_MATH_DEFINES
float k, a, n;
std::cin >> k >> a >> n;
float
y = (k + M_PI / 4) * (a - 5 * M_PI),
x = M_PI / 7 * k - n * (M_PI - 1);
std::cout << "F = " << (1 - std::tan(x)) * (1 + std::sin(2 * y)) << std::endl;
return 0;
}