
a, b = map(int, input().strip().split(' '))
print("a =",a)
print("b =",b)

str, n = input().strip().split(' ')
n = int(n)
print(str*int(n))

str = input()
for i in str:
if i.isupper() == True:
print(i.lower(), end="")
else:
print(i.upper(), end="")
#swapcase 메서드
print(input().swapcase())

print(r'!@#$%^&*(\'"<>?:;')