2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
179
122
32
179
179
179
162
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179
179