测试数据 #0: Accepted, time = 0 ms, mem = 724 KiB, score = 10
测试数据 #1: Accepted, time = 15 ms, mem = 724 KiB, score = 10
测试数据 #2: Accepted, time = 0 ms, mem = 728 KiB, score = 10
测试数据 #3: Accepted, time = 15 ms, mem = 724 KiB, score = 10
测试数据 #4: Accepted, time = 15 ms, mem = 728 KiB, score = 10
测试数据 #5: Accepted, time = 15 ms, mem = 724 KiB, score = 10
测试数据 #6: Accepted, time = 0 ms, mem = 728 KiB, score = 10
测试数据 #7: Accepted, time = 0 ms, mem = 728 KiB, score = 10
测试数据 #8: Accepted, time = 0 ms, mem = 728 KiB, score = 10
测试数据 #9: Accepted, time = 0 ms, mem = 728 KiB, score = 10

这一题注意坐标，是从0,0开始的呀！如果你偏要换成1,1 那么n,m 马的坐标都要改。