400
0
9
222
1
7
216
10
6
290
0
6
113
3
5
224
0
5
158
0
4
191
2
4
174
0
4
226
0
3
142
0
3
148
0
3
186
2
3
177
0
3
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Keyword(s): 数学 計算 問題