from math import sqrt
1
"""a=5
b=5.0
c=[]
d=[1,2,3,4,5,6]"""

2
"""c=20
d=27
a=26
if (a>=c and a<=d):
    print True
else:
    print False """

3
"""a=[1,2,3,4,5,6,7,8,9,10]
for i in range (len(a)):
    print a[-i-1]
print "up"
for j in range (len(a)):
    print a[j]"""
#input_file = open("test.txt")
#for line in input_file:
#   print line

"""a = "1,2,3,4"
sep = ","
print a.split(sep)

a = [1,2,3]
from copy import deepcopy
b = deepcopy(a)
6"""
"""a=[1,2,3,4,5,6,7]
b=[]
for i in range (len(a)):
    b.append (a[i])
print b"""

7
"""a=36
b=sqrt(a)
print b"""

8
"""def func(a):
    if (a%4==0 and a%100!=0 or a%400==0):
        print "good"
    else:
        print "bad"  """

9
"""a=[1,3,6,1,14,25]
def mass(a):
    c=0
    for i in range (len(a)):
        if (a[i]%2==0 and a[i]%7==0):
            c=1
    if (c==1):
        print "true"
    else:
        print "bad"
mass (a)
a = [1,2,3,4,5,6,7]
print a[:len(a):2]
10"""
"""c=1
a=[1,2,3,4,5,6,7,8,9]
if (c==1):
    for i in range (0,len(a),2):
        print a[i]
if (c!=1):
    for i in range (1,len(a),2):

        print a[i]  """

11
"""def func2(a,b):
    max2=0
    if (a>b):
        max2=a
    else:
        max2=b
    return max2
def func3(a,b,c):
    max3=func2(func2(a,b),c)
    return max3
def func4(a,b,c,d):
    max4=func2(func3(a,b,c),d)
    return max4
a=2
b=5000
c=21434
d=21
print func4(a,b,c,d) """

12

"""a=[1.0,2.0,3.0,5.0,6.0,7.0,8.0,9.0,10.0]
ch=0
s=0
for i in range (len (a)):
    if (a[i]%2==0):
        s+=1
        ch+=a[i]
res=ch/s
print res """

13
"""ch=6
b=[]
for i in range (0,10,1):
    b.append(ch)
    ch+=2
print b"""