#include <sstream>
#include <string>
#include <iostream>
int main() {
// your code goes here
std::istringstream iss("a1,b1,c1;a2,b2,c2;a3,b3,c3;……");
std::string word;
while(std::getline(iss, word, ';')){
std::cout << word <<std::endl;
}
return 0;
}
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