def abc(m, n) :
print(m - n)
abc(14, 5)def abc(m=15, n=10, o=5) :
print(m * n + o)
abc()def abc(m, n) :
return m * n
print(abc(7, 3))def p(m, n) :
return m / n
o = p(50, 5)
print(o)def abc(m, n) :
print(m - m - n)
abc(14, 5)