Sea Battle

medium
Question Solve Solutions 
<a href="https://codeforces.com/contest/729/problem/D">https://codeforces.com/contest/729/problem/D</a>

Input Format

.

Output Format

.

Constraints

.

Notice

.

Example

Input
5 1 2 1
00100
Output
2
4 2
Previous
Minimum Number Of Steps
Next
Permutations

Related Questions

medium K-lcm (easy Version) medium K-lcm (hard Version) medium Polo The Penguin And Xor Operation easy Random Teams medium K-th Not Divisible By N medium Buying Shovels medium Pocket Book easy Product Of Three Numbers medium Same Parity Summands medium Yet Another Array Restoration medium Jumps medium Almost All Divisors medium Points medium Mafia medium Taxes easy Easy Number Challenge