s = input()
n = len(s)
print(s[0:4])
print(s[n//2-1:n//2+2])
print(s[::5])
print(s[4::5])

print("========")

s = input()
n = len(s)
print(s[0:4])
print(s[n//2-1:n//2+2])
print(s[::5])
print(s[4::5])