#include <iostream>

#include <string>

using namespace std;

int main(int argc, char **argv){

const string delims(" \t,.;");

string line;

//for every line read successfully

while(getline(cin, line)){

string::size_type begIdx, endIdx;

//search beginning of the first word

begIdx = line.find_first_not_of(delims);

//while beginning of the first word

while(begIdx != string::npos){

//search end of the actual word

endIdx = line.find_first_of(delims, begIdx);

if(endIdx == string::npos){

//end of word is end of file

endIdx = line.length();

}

//print characters in reverse order

for(int i=endIdx-1;i>=static_cast<int>(begIdx);--i){

cout << line[i];

}

cout << ' ';

//search beginning of the next word

begIdx = line.find_first_not_of(delims, endIdx);

}

cout << endl;

}

return 0;

}