# 9
s = input()
if s==s[::-1]:
    print(s,'la palindrome')
else:
    print(s,'khong la palindrome')

# 10
s = input()
x = input()
print(s.count(x))

# 11
s = input()
print(len([1 for i in s if '0'<i<='9']))

# 12
s1 = list(input())
s2 = list(input())
s = ''
while s1!=[] or s2!=[]:
    if s1!=[]:
        s+=s1[0]
        del s1[0]
    if s2!=[]:
        s+=s2[0]
        del s2[0]
print(s)