。。。救救孩子把```cpp

include<iostream>

include<string>

using namespace std; int main() { string ISBN; getline(cin, ISBN); int len = ISBN.size(); int all=0; int lu = 0; for (int i = 0; i < len-1; i++) {

    if (ISBN[i] == '-') { lu++; continue; }
    all += (ISBN[i]-'0') * (i - lu + 1);

}
int res = all % 11;
if (res == 10) {
    if (ISBN[len - 1] == 'X') { cout << "Right"; return 0; }
    else {
        for (int j = 0; j < len - 1; j++) {

            cout << ISBN[j];

        }
        cout << 'X'; return 0;
    }

}
if (all % 11 == (ISBN[len - 1]-'0')) {

    cout << "Right";
}
else {

    for (int j = 0; j < len - 1; j++) {

        cout << ISBN[j];

    }

    cout << res;
}

return 0;

}