Logic Building
# Take string input
s = input("Enter a string: ")
# Extract and sum numbers
total = 0
current_num = ""
for char in s:
if char.isdigit():
current_num += char
else:
if current_num:
total += int(current_num)
current_num = ""
if current_num:
total += int(current_num)
print(f"Sum: {total}")Output
Enter a string: Hello123World456 Sum: 579
Extract numbers and accumulate sum.
Key Concepts:
- Extract numbers from string
- Convert to integers
- Sum all numbers