//https://qiita.com/nojima/items/57b9d39d7d73362ac883を丸パクリ # include # include # include # include # include # include # include using namespace std; class Scanner { vector buffer; ssize_t n_written; ssize_t n_read; public: Scanner(): buffer(1024*1024) { do_read(); } long long read_int() { long long ret = 0, sgn = 1; int ch = current_char(); while (isspace(ch)) { ch = next_char(); } if (ch == '-') { sgn = -1; ch = next_char(); } for (; isdigit(ch); ch = next_char()) ret = (ret * 10) + (ch - '0'); return sgn * ret; } private: void do_read() { ssize_t r = read(0, &buffer[0], buffer.size()); if (r < 0) { throw runtime_error(strerror(errno)); } n_written = r; n_read = 0; } inline int next_char() { ++n_read; if (n_read == n_written) { do_read(); } return current_char(); } inline int current_char() { return (n_read == n_written) ? EOF : buffer[n_read]; } }; int main() { Scanner scanner; int h = scanner.read_int(); int w = scanner.read_int(); unsigned int sum = 0; vector hs(h); for (int i = 0; i < h; ++i) { long long here=0; for (int j = 0; j < w; ++j) { hs[i] += scanner.read_int(); } sum+=hs[i]; } string ans; char num[13]; unsigned int idx=0; for(int i=0;i