Scoping 6

def a():
    x = 1
    y = 2  
    def b():
        global y      
        y = 1
        print(y,x)
        def c():
            # global y
            y = 10
            print(f"function c: {y}")
            def d():
               nonlocal y
               y = y + 1
               print(f"function d: {y}")
            d()
        c()
    b()
    print(f"function a: {y}")
a()
print(y)