e) Average 1

e.c

/*
 * e
 * Average 1
 */

#include <stdio.h>

int main ( void )
{
	float a;
	float b;

	scanf ( "%f", &a );
	scanf ( "%f", &b );
	
	printf("MEDIA = %.5lf\n",( ( ( a * 3.5 ) + ( b * 7.5 )) / ( 3.5 + 7.5 )));
	
	return 0;
}