
def A() :
    print( "this is A")

def B() :
    print( "this is B" )

def C() :
    print("this is C" )
    
      
P1 = True
P2 = True
P = True

if P == True :
    if P1 == True:
        B()
    else:
        A()
else:
    if P2 == Ture:
        B()
    else:
        C()
    

       
