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#include <bits/stdc++.h>
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using namespace std;
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typedef long long ll;
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int main() {
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int time, t; //time:输入测试数据次数 t:数字的每一位
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ios::sync_with_stdio(false);//读入输出优化的强迫症= =
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cin >> time;
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//按次数输入数据
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for (int i = 0; i < time; i++) {
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ll x;
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cin >> x; //输入的数据
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ll p = 0; //9的几次方?
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ll ans = 0; //有多少个?
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//模拟9进制
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while (x) {
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//取个位
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t = x % 10;
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//如果比7大,那么实际是要小一个的
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if (t >= 7) t--;
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//计算有多少个?
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ans += t * pow(9, p);
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x = x / 10;
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p++;
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}
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cout << ans << endl;
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}
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}
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