DIRS = [(0, -1), (1, 0), (0, 1), (-1, 0)]

class AntSim(object):
    def __init__(self):
        self.grid = [[0 for _ in xrange(20)] for _ in xrange(20)]
        self.antx = 10
        self.anty = 10
        self.antd = 0

    def advancePrint(self):
        vals = ["_", "#", "A"]
        current = self.grid[self.anty][self.antx]

        self.grid[self.anty][self.antx] = 2
        for row in self.grid:
            print ''.join(vals[i] for i in row)

        if current == 0:
            self.grid[self.anty][self.antx] = 1
            self.antd += 1
            if self.antd > 3:
                self.antd = 0
        elif current == 1:
            self.grid[self.anty][self.antx] = 0
            self.antd -= 1
            if self.antd < 0:
                self.antd = 3
        self.antx += DIRS[self.antd][0]
        self.anty += DIRS[self.antd][1]

a = AntSim()
while True:
    raw_input()
    print
    a.advancePrint()