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28 lines
543 B
28 lines
543 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 1e5 + 10;
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int a[N], al;
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void mul(int a[], int &al, int b) {
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int t = 0;
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for (int i = 1; i <= al; i++) {
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t += a[i] * b;
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a[i] = t % 10;
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t /= 10;
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}
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if (t) a[++al] = t;
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while (al > 1 && a[al] == 0) al--;
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}
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int main() {
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string x;
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int y;
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cin >> x >> y;
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for (int i = x.size() - 1; i >= 0; i--) a[++al] = x[i] - '0';
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mul(a, al, y);
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for (int i = al; i; i--) printf("%d", a[i]);
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return 0;
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}
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