#include <string>
            #include <sstream>
            #include <fstream>
            #include <iterator>
            #include <vector>
            #include <algorithm>
            #include <iostream>
 
            using namespace std;
 
            int main()
            {
                std::string line;
                while(std::getline(cin, line)) 
                {
                    std::stringstream str(line);
                    std::istream_iterator<int> inf(str), eof;
                    std::vector<int> vec(inf, eof);
                    std::cout << *std::max_element(vec.begin(), vec.end()) << std::endl;
                }
            }

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1 13 330 323 18 1 40 410 413 45 1 28 381 347 16 1 16 230 261 27
2 6 208 218 8 2 24 253 277 21 2 13 223 244 14 2 10 177 185 6
3 0 12 1 1 3 20 417 416 18 3 23 322 320 23 3 5 21 23 4
4 1 7 18 2 4 11 149 138 11 4 11 120 116 10 4 2 27 24 3