#include <stdio.h>
#include <math.h>


float degrees_to_radians(float degrees) {
	return M_PI * degrees / 180.0;
}

int main() {
	float input, output;
	printf("Enter an angle in degrees: ");
	scanf("%f", &input);

	output = degrees_to_radians(input);

	printf("%f radians\n", output);

	return 0;
}