foo.cc: In function 'int main()':
foo.cc:11:11: warning: too many arguments for format [-Wformat-extra-args]
   11 |    printf("%-4d-4d",x,35-3);
      |           ^~~~~~~~~
foo.cc:6:6: warning: unused variable 'x' [-Wunused-variable]
    6 |  int x;
      |      ^

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