Block Scope

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Main Block

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Block A

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Block B

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Block C

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Block D

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Block E

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Variable x

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Variable y

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Variable z

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Variable a

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Variable b

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

def main():
    # main block
    # variable declarations in main block
    y = 0
    z = 0
    a = 0
    b = 0
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()

Function Scope

def main():
    # main block
    x = int(input("Enter a number: "))
    if x > 5:
        # block A
        y = int(input("Enter a number: "))
        if y > 10: 
            # block B
            z = 10
        else:
            # block C
            z = 5
    elif x < 0:
        # block D
        a = -5
    else:
        # block E
        b = 0
    print("?")


main()