Problems > Binary Addition

Binary Addition

Difficulty: 1200 2000 ms 128 MB

math strings

Add two binary numbers given as strings (up to 200 bits — too big for built-in 64-bit integers).

Input: two lines, each a binary string without leading zeros (except 0).

Output: their sum in binary.

Constraints:

  • 1 ≤ length ≤ 200

Sample Tests

Input 1
101
11
Output 1
1000
Input 2
0
0
Output 2
0

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