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1569. Selection of Personnel
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One company of IT City decided to create a group of innovative developments consisting from 5 to 7 people and hire new employees for it. After placing an advertisment the company received n resumes. Now the HR department has to evaluate each possible group composition and select one of them. Your task is to count the number of variants of group composition to evaluate. Input The only line of the input contains one integer n (7 ≤ n ≤ 777) — the number of potential employees that sent resumes. Output Output one integer — the number of different variants of group composition. Examples Input 7 Output 29 |
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| Problems from Contests and Camps / | School olympiads and couses of Vologda region / | VolBIT / | VolBIT-2016 / |
| 1568. E - A Rectangle | 1569. | 1570. G - Challenge Pennants | 1571. H - Benches | 1572. I - Parking Lot |
| time generating 0.094 sec. |
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