> For the complete documentation index, see [llms.txt](https://vishnums.gitbook.io/mylearning/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vishnums.gitbook.io/mylearning/py9.md).

# py9

#### 1. Print Hello World

```python
print("Hello, World!")
```

#### 2. Add Two Numbers

```python
a = int(input("First: "))
b = int(input("Second: "))
print("Sum =", a + b)
```

#### 3. Even or Odd

```python
n = int(input("Enter number: "))
if n % 2 == 0:
    print("Even")
else:
    print("Odd")
```

#### 4. Largest of Two Numbers

```python
a = int(input("A: "))
b = int(input("B: "))
if a > b:
    print(a)
else:
    print(b)
```

#### 5. Multiplication Table

```python
n = int(input("Enter: "))
for i in range(1, 11):
    print(n, "x", i, "=", n * i)
```

#### 6. Count from 1 to 10

```python
for i in range(1, 11):
    print(i)
```

#### 7. Reverse a String

```python
text = input("Enter: ")
print(text[::-1])
```

#### 8. Find Square

```python
n = int(input("Enter: "))
print("Square =", n ** 2)
```

#### 9. Check Positive, Negative, or Zero

```python
n = int(input("Enter: "))
if n > 0:
    print("Positive")
elif n < 0:
    print("Negative")
else:
    print("Zero")
```

#### 10. Simple Calculator

```python
a = int(input())
b = int(input())
print("Add:", a + b)
print("Sub:", a - b)
print("Mul:", a * b)
print("Div:", a / b)
```

Here are **Python Beginner Projects #11–#30**, each kept within **9 lines of code** or fewer.

#### 11. Find the Greatest of Three Numbers

```python
a = int(input())
b = int(input())
c = int(input())
print(max(a, b, c))
```

#### 12. Swap Two Numbers

```python
a = int(input())
b = int(input())
a, b = b, a
print(a)
print(b)
```

#### 13. Check Leap Year

```python
y = int(input())
if (y % 400 == 0) or (y % 4 == 0 and y % 100 != 0):
    print("Leap Year")
else:
    print("Not Leap Year")
```

#### 14. Find Factorial

```python
n = int(input())
f = 1
for i in range(1, n + 1):
    f *= i
print(f)
```

#### 15. Sum of First N Numbers

```python
n = int(input())
s = 0
for i in range(1, n + 1):
    s += i
print(s)
```

#### 16. Count Digits

```python
n = input()
print(len(n))
```

#### 17. Check Palindrome Number

```python
n = input()
if n == n[::-1]:
    print("Palindrome")
else:
    print("Not Palindrome")
```

#### 18. Find ASCII Value

```python
ch = input()
print(ord(ch))
```

#### 19. Celsius to Fahrenheit

```python
c = float(input())
f = (c * 9 / 5) + 32
print(f)
```

#### 20. Fahrenheit to Celsius

```python
f = float(input())
c = (f - 32) * 5 / 9
print(c)
```

#### 21. Check Vowel or Consonant

```python
ch = input().lower()
if ch in "aeiou":
    print("Vowel")
else:
    print("Consonant")
```

#### 22. Print Even Numbers (1–20)

```python
for i in range(2, 21, 2):
    print(i)
```

#### 23. Print Odd Numbers (1–20)

```python
for i in range(1, 21, 2):
    print(i)
```

#### 24. Find Square Root

```python
n = float(input())
print(n ** 0.5)
```

#### 25. Simple Interest Calculator

```python
p = float(input())
r = float(input())
t = float(input())
si = (p * r * t) / 100
print(si)
```

#### 26. Area of a Circle

```python
r = float(input())
area = 3.14 * r * r
print(area)
```

#### 27. Check Prime Number

```python
n = int(input())
for i in range(2, n):
    if n % i == 0:
        print("Not Prime")
        break
else:
    print("Prime")
```

#### 28. Reverse a Number

```python
n = input()
print(n[::-1])
```

#### 29. Generate Random Number

```python
import random
print(random.randint(1, 100))
```

#### 30. Roll a Dice

```python
import random
print("🎲", random.randint(1, 6))
```

Here are **Python Beginner Projects #31–#50**, each designed to be **9 lines of code or fewer**. 🐍

#### 31. Find Minimum of Three Numbers

```python
a = int(input())
b = int(input())
c = int(input())
print(min(a, b, c))
```

#### 32. Sum of Digits

```python
n = input()
s = 0
for i in n:
    s += int(i)
print(s)
```

#### 33. Multiply Digits

```python
n = input()
p = 1
for i in n:
    p *= int(i)
print(p)
```

#### 34. Check Armstrong Number

```python
n = input()
s = 0
for i in n:
    s += int(i) ** 3
print("Yes" if s == int(n) else "No")
```

#### 35. Print Alphabet A to Z

```python
for i in range(65, 91):
    print(chr(i))
```

#### 36. Print ASCII Values

```python
for i in range(65, 71):
    print(chr(i), "=", i)
```

#### 37. Count Vowels

```python
text = input().lower()
count = 0
for i in text:
    if i in "aeiou":
        count += 1
print(count)
```

#### 38. Count Consonants

```python
text = input().lower()
count = 0
for i in text:
    if i.isalpha() and i not in "aeiou":
        count += 1
print(count)
```

#### 39. Check String Palindrome

```python
text = input()
print("Yes" if text == text[::-1] else "No")
```

#### 40. Find String Length

```python
text = input()
print(len(text))
```

#### 41. Convert to Uppercase

```python
text = input()
print(text.upper())
```

#### 42. Convert to Lowercase

```python
text = input()
print(text.lower())
```

#### 43. Remove Spaces

```python
text = input()
print(text.replace(" ", ""))
```

#### 44. Count Words

```python
text = input()
print(len(text.split()))
```

#### 45. Find Largest Digit

```python
n = input()
print(max(n))
```

#### 46. Find Smallest Digit

```python
n = input()
print(min(n))
```

#### 47. Print Multiples of 5

```python
for i in range(5, 51, 5):
    print(i)
```

#### 48. Print Numbers Divisible by 3

```python
for i in range(1, 31):
    if i % 3 == 0:
        print(i)
```

#### 49. Generate a Random Password

```python
import random
import string
p = "".join(random.choice(string.ascii_letters) for _ in range(8))
print(p)
```

#### 50. Guess the Number

```python
import random
n = random.randint(1, 10)
g = int(input())
print("Correct" if g == n else n)
```