Testing Round 15 (Unrated) |
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Finished |
Let's write all the positive integer numbers one after another from $$$1$$$ without any delimiters (i.e. as a single string). It will be the infinite sequence starting with 123456789101112131415161718192021222324252627282930313233343536...
Your task is to print the $$$k$$$-th digit of this sequence.
The first and only line contains integer $$$k$$$ ($$$1 \le k \le 10^{12}$$$) — the position to process ($$$1$$$-based index).
Print the $$$k$$$-th digit of the resulting infinite sequence.
7
7
21
5
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