foo.cc: In function 'int main()':
foo.cc:11:14: warning: unknown conversion type character '-' in format [-Wformat=]
   11 |    printf("%4-d%-4d",x,y);
      |              ^
foo.cc:11:11: warning: too many arguments for format [-Wformat-extra-args]
   11 |    printf("%4-d%-4d",x,y);
      |           ^~~~~~~~~~

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