foo.c: In function 'main':
foo.c:7:5: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'printf'
    7 |     printf("%d"，x);
      |     ^~~~~~
foo.c:7:16: error: expected ')' before '\U0000ff0cx'
    7 |     printf("%d"，x);
      |           ~    ^~~
      |                )
foo.c:7:14: warning: format '%d' expects a matching 'int' argument [-Wformat=]
    7 |     printf("%d"，x);
      |             ~^
      |              |
      |              int

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