def f():
    a = "lokaler String"

b = "globaler String"
print(b)
#print(a)       # NameError: name 'a' is not defined

print()

def f(a):
    print(a)

a = 10
print(a)
f(100)

print()

def g():
    print(s)

s = "globaler String"
g()

def h():
    s = "lokaler String"
    print(s)

s = "globaler String"
h()
print(s)

print()

def i():
    global s
    s = "lokaler String"
    print(s)

s = "globaler String"
i()
print(s)