Closest Enemy II

Have the function ClosestEnemyII(strArr) read the matrix of numbers stored in strArr which will be a 2D matrix that contains only the integers 1, 0, or 2. Then from the position in the matrix where a 1 is, return the number of spaces either left, right, down, or up you must move to reach an enemy which is represented by a 2. You are able to wrap around one side of the matrix to the other as well. For example: if strArr is ["0000", "1000", "0002", "0002"] then this looks like the following:

0 0 0 0
1 0 0 0
0 0 0 2
0 0 0 2

For this input your program should return 2 because the closest enemy (2) is 2 spaces away from the 1 by moving left to wrap to the other side and then moving down once. The array will contain any number of 0's and 2's, but only a single 1. It may not contain any 2's at all as well, where in that case your program should return a 0.

Examples

Input: ["000", "100", "200"]
Output: 1

Input: ["0000", "2010", "0000", "2002"]
Output: 2