18 lines
310 B
C++
18 lines
310 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int reverse(int num) {
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string tmp = to_string(num);
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reverse(tmp.begin(), tmp.end());
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return stoi(tmp);
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}
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int main() {
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int i, j, k, res = 0;
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cin >> i >> j >> k;
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for (; i <= j; i++)
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if (abs(i-reverse(i)) % k == 0) res++;
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cout << res << endl;
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return 0;
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}
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