foo.cc: In function 'int main()':
foo.cc:50:18: warning: unknown conversion type character ';' in format [-Wformat=]
   50 |         printf("%;;d\n",s);
      |                  ^
foo.cc:50:16: warning: too many arguments for format [-Wformat-extra-args]
   50 |         printf("%;;d\n",s);
      |                ^~~~~~~~

Found 2 testcases.
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