bobo 有很多整数。具体来说，他有 $a_1$ 个 $1$，$a_2$ 个 $2$，……，$a_{10}$ 个 $10$。
今天，bobo 想要挑选其中的一些数字并计算它们的乘积（如果不选择任何数字，乘积定义为 $1$）。bobo 对他能得到的不同乘积的数量很感兴趣，请输出该数量对 $(10^9 + 7)$ 取模的结果。
$10$ 个整数 $a_1, a_2, \dots, a_{10}$ ($0 \le a_i \le 10^9$)。
一个整数，表示不同乘积的数量。
0 1 0 1 0 0 0 1 0 0
7
0 1000000000 100000000 0 0 0 0 0 0 0
400000001
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