1. Description

Binary to Decimal

Write a program that reads a binary string (containing only 0s and 1s), converts it to the corresponding decimal integer, and outputs the integer.

2. Input & Output

Input:

• A binary string (e.g., "1010")
• Use input() for reading

Output:

• A decimal integer
• Use print() for output

Example

# Input: 
1010
# Output: 
10

# Input: 
1110110111
# Output: 
951