all coupons
0
0
0
0
1
0
2
0
0
0
1
0
0
0
1
0
1
0
0
0
0
0
4
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
4
0
4
0
1
0
-2
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
1
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
1
0
0
0
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