#include <iostream>
#include <cmath>

int main() {
    double values[] = {-1.0, -0.5, 0.0, 0.5, 1.0};
    for (double value : values) {
        double result = asin(value);
        std::cout << "asin(" << value << ") = " << result << " radians" << std::endl;
    }
    return 0;
}