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#include<bits/stdc++.h>
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using namespace std;
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//原始英文数字
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// You are a three eight pig . 10964
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unordered_map<string, int> _map = {{"zero", 0},
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{"one", 1},
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{"two", 4},
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{"three", 9},
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{"four", 16},
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{"five", 25},
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{"six", 36},
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{"seven", 49},
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{"eight", 64},
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{"nine", 81},
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{"ten", 0},
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{"eleven", 21},
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{"twelve", 44},
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{"thirteen", 69},
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{"fourteen", 96},
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{"fifteen", 25},
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{"sixteen", 56},
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{"seventeen", 89},
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{"eighteen", 24},
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{"nineteen", 61},
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{"twenty", 0},
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{"a", 1},
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{"both", 4},
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{"another", 1},
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{"first", 1},
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{"second", 4},
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{"third", 9}
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};
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string s;
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const int N = 1010;
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int a[N];
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int idx;
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int main() {
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//ctrl+d,或者ctrl+z结束
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while (cin >> s)
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if (_map[s]) a[idx++] = _map[s];
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sort(a, a + idx);
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string res = "";
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for (int i = 0; i < idx; i++) {
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if (i > 0 && a[i] < 10) res += "0" + to_string(a[i]);
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else res += to_string(a[i]);
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}
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//第3个点需要特判，没任何数字，输出0，很坑……
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if (res != "") cout << res << endl;
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else cout << 0 << endl;
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return 0;
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}
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