#!/bin/python

import scipy
from scipy.stats import norm


Ans=[]
for a0 in xrange(3):
	n = raw_input().strip()
	if a0==0:
		Ans.append(scipy.stats.norm(30,4).cdf(int(n)))
	elif a0==1:
		Ans.append(1-scipy.stats.norm(30,4).cdf(int(n)))
	elif a0==2:
		n=n.split(" ")
		Ans.append(scipy.stats.norm(30,4).cdf(int(n[1]))-scipy.stats.norm(30,4).cdf(int(n[0])))

for a in Ans:
	print str(round(a,3))


'''
print 0.994
print 0.988
print 0.394
'''