Task #R030B

Memory 32 MB Time 1000 ms Complexity 20 %

Maximum son

\(N\) natural sonini ko`p marta ishlatmoqchi bo`ldik, ammo bu son bizga yoqmay qoldi, endi siz shu sondan aynan \(K\) ta raqamni o`chirib iloji boricha eng katta son qoldiring.

Input:

Yagona qatorda \(N\) va \(K (0 \le K < |N| \le 3*10^5)\) butun sonlari beriladi.
Bu yerda \(|N| \space – \space N\) sonining raqamlari sonini bildiradi.

Output:

Yagona butun son masala yechimini chiqaring.

Examples

#	input.txt	output.txt
1	300 1	30
2	127456 4	76

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