#include <stdio.h>

int main(void)
{
	float earth_years , martian_years;
	printf("Please enter the amount of earth years to convert.\n");
	scanf("%f",&earth_years);
	
	martian_years = earth_years * 365 / 687;
	printf("Equivalent martian years is : %f\n",martian_years);
	return 0;
}