#return 있는 함수

def add(x,y):
    return x + y

n1=add(11,22)
print(n1)

def sub(x,y):
    return x-y

n2=sub(30,19)
print(n2)

def multi(x,y):
    return x*y
n3=multi(13,20)
print(n3)

def calc(x,y,c):
    return x+y-c
n4=calc(50,10,46)
print(n4)
