from collections import deque

def minimumMoves(grid, startX, startY, goalX, goalY):
    n = len(grid)
    m = len(grid[0])
    directions = [(0, 1), (1, 0), (0, -1), (-1, 0)]    
    queue = deque([(startX, startY, 0)])  
    visited = set()
    visited.add((startX, startY))
    while queue:
        x, y, moves = queue.popleft()        
        if (x, y) == (goalX, goalY):
            return moves        
        for dx, dy in directions:
            nx, ny = x, y
            while 0 <= nx + dx < n and 0 <= ny + dy < m and grid[nx + dx][ny + dy] != 'X':
                nx += dx
                ny += dy
                if (nx, ny) not in visited:
                    visited.add((nx, ny))
                    queue.append((nx, ny, moves + 1))    
    return -1