# Program 72: Remove Spaces
def main():
    text = input("Enter text: ")

    result = ""

    for ch in text:
        if ch != " ":
            result += ch

    print("Without spaces:", result)

main()

Enter text:  thangappa thakkam


Without spaces: thangappathakkam

# Program 73: Uppercase Count
def main():
    text = input("Enter text: ")

    count = 0

    for ch in text:
        if ch.isupper():
            count += 1

    print("Uppercase letters:", count)

main()

Enter text:  rube


Uppercase letters: 0

# Program 74: Lowercase Count
def main():
    text = input("Enter text: ")

    count = 0

    for ch in text:
        if ch.islower():
            count += 1

    print("Lowercase letters:", count)

main()

Enter text:  where


Lowercase letters: 5