def toplama(a,b):
    return a+b
def cıkarma(a,b):
    return a-b
def carpma(a,b):
    return a*b
def bolme(a,b):
    return a/b
def toplama(a,b):
    return a+b
def cıkarma(a,b):
    return a-b
def carpma(a,b):
    return a*b
def bolme(a,b):
    return a/b