foo.cc:5:12: warning: missing terminating " character
    5 |     printf("A<<AA<<AAA<<AAAAA<<AAAAAA);
      |            ^
foo.cc:5:12: error: missing terminating " character
    5 |     printf("A<<AA<<AAA<<AAAAA<<AAAAAA);
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:6:1: error: expected primary-expression before '}' token
    6 | }
      | ^

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