#include <iostream> #include <vector> #include <string> #include<algorithm> using namespace std; int main() { string line; while (cin >> line) { vector<string> strs; int start = 0; int len = 0; for(int i=0; i<line.length(); i++) { if(line[i] != ',') { len++; } else { string str = line.substr(start, len); strs.push_back(str); start = i+1; len = 0; } } string str = line.substr(start, len); strs.push_back(str); std::sort(strs.begin(), strs.end()); for(int i=0; i<strs.size()-1; i++) cout << strs[i] << ','; cout << strs[strs.size()-1] << endl; } }
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