import math
import sys
print 2**179
print math.log (766247770432944429179473513575154591809369561091801088,2)

a=float(sys.argv[1])
b=float(sys.argv[2])
c=math.sqrt((a**2)+(b**2))
print c

a=float(sys.argv[1])
b=float(sys.argv[2])
print max(a,b)

a=float(sys.argv[1])
print a-math.floor(a)

a='Abrakadabra'
print a[2]
print a[-2]
print a[:5]
print a[:-2]
c=''
i=1
for b in a:
	if i % 2 == 0:
		c+=b
	i+=1
print c

c=''
i=1
for b in a:
	if i % 2 != 0:
		c+=b
	i+=1
print c
print a[::-1]
print a[::4]
print (len(a))
print a[-2:]


a=int(sys.argv[1])
b=int(sys.argv[2])
c=range (a,b+1)


i=1
for a in 'abcdefgh':
	if i % 2 != 0:
		print ( 'symbol: ' + a)
	i+=1

i=1
for a in 'Dima', 'Inna', 'Masha', 'Papa':
	if i % 2 != 0:
		print ( 'Family number ' + str(i) + ': ' + a)
	i += 1

x=10
if x>5:
	print"1. x>5"
if x>6:
	print"1. x>6"
if x>7:
	print"1. x>7"

if x>5:
	print"2. x>5"
elif x>6:
	print"2. x>6"
elif x>7:
	print"2. x>7"

#-------
if x>7:
	print"1.1 x>7"
if x>6:
	print"1.1 x>6"
if x>5:
	print"1.1 x>5"

if x>7:
	print"2.1 x>7"
elif x>6:
	print"2.1 x>6"
elif x>5:
	print"2.1 x>5"




i=1
for a in 'Dima', 'Inna', 'Masha', 'Papa':
	if (len(a)>4):
		print ( 'Family number ' + str(i) + ': ' + a)
	i += 1

for color in 'red', 'orange', 'yellow', 'green', 'cyan', 'blue', 'violet':
    print('color of rainbow is ' + color)

for x in 'red', 'orange', 'yellow':
	print ('===================')
	print ('color of rainbow is *' + x)
	print ('===================')


color='red'
print ('===================')
print ('color of rainbow is ' + color)
print ('===================')
color='orange'
print ('===================')
print ('color of rainbow is ' + color)
print ('===================')
color='yellow'
print ('===================')
print ('color of rainbow is ' + color)
print ('===================')


for i in range(1,21):
 	print 'a'*i

z = 5
w = 't'
print str(z) + w