9.

def ham(a,b):
    return a,b
a,b=map(int,input().split())
print(*ham(a,b))

10.

def ham(a):
    return [i for i in a if i%15==0]
a=list(map(int,input().split()))
print(*ham(a))

Bài 9:

def value(a, b):
    return a, b
a, b = map(int, input().split())
print(*value(a, b))

Bài 10:

def solve(a):
    return [int(x) for x in a if x % 15 == 0]
a = list(map(int, input().split()))
print(*solve(a))