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1815. First digit

Time Limit:	1 seconds
Memory Limit:	262144KB
Points:	100

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Problem added debug

Дано целое N. Найти его первую цифру.

Input

Одно целое число N (-10⁹ ≤ N ≤ 10⁹)

Output

Одна цифра - ответ.

Sample

Input	Output
42	4

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Problem discussion

Author/source:

Problems from Contests and Camps /

School olympiads and couses of Vologda region /

Different Contests /

Contest VML for 7 Form, cycles /

1350. 06 - Fibonacci Numbers

1815.

1816. 08 - Sum and Quantity of Digits

1817. 09 - Permutation of Digits

707. 10 - Длинный НОД

time generating 0.156 sec.

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