데블스캠프2011/셋째날/RUR-PLE

avenues = 5
streets = 5
robot = (1, 1, 'E', 0)
walls = []
beepers = {
    (1, 3): 1, 
    (2, 1): 1, 
    (5, 1): 1, 
    (1, 2): 1, 
    (2, 2): 1, 
    (4, 1): 1, 
    (1, 1): 1, 
    (3, 2): 1, 
    (1, 4): 1, 
    (2, 3): 1, 
    (3, 1): 1, 
    (5, 2): 1
}