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ADASUM - Ada and Expenses |
Ada the Ladybug has just returned from her trips. She noted all her expenses. Sadly, she only had a small piece of paper so she had to keep it in a compressed form. The compressed form is just a very long number. To restore the expenses, simply sum all contiguous subsequences of the number. Since this number might be pretty big, you only have to output it modulo 109+7 (1000000007).
Can you help her to restore the number?
Input
The first and the only line of input contains the compressed sequence of digits ([0..9]): 1 ≤ |s| ≤ 2*106
Output
Print the sum of all contiguous subsequences
Example Input
123
Example Output
164
Example Input 2
001
Example Output 2
3
Example Input 3
105004400
Example Output 3
127807548
Example Input 4
4774
Example Output 4
6245
Example Input 5
4369383968
Example Output 5
353343059
Example Input 6
447723168365033648256648424988
Example Output 6
42233771
Added by: | Morass |
Date: | 2017-08-31 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | C CSHARP C++ 4.3.2 CPP CPP14 CPP14-CLANG C99 JAVA PYTHON PYPY PYTHON3 |