# 1번째 컴파일 단계
/usr/bin/ld: /tmp/ccsRRha8.o: in function `main':
grader_azzurro.cpp:(.text.startup+0x1ec): undefined reference to `Azzurro(int, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
collect2: error: ld returned 1 exit status
