foo.c: In function 'main':
foo.c:5:9: error: expected identifier or '(' before numeric constant
    5 |     int 0<=x,y<=32767;
      |         ^
foo.c:6:22: error: expected ')' before '\U0000ff0c'
    6 |         scanf("%d %d"，&x,&y);
      |              ~       ^~
      |                      )
foo.c:6:17: warning: format '%d' expects a matching 'int *' argument [-Wformat=]
    6 |         scanf("%d %d"，&x,&y);
      |                ~^
      |                 |
      |                 int *
foo.c:6:20: warning: format '%d' expects a matching 'int *' argument [-Wformat=]
    6 |         scanf("%d %d"，&x,&y);
      |                   ~^
      |                    |
      |                    int *
foo.c:7:21: error: 'x' undeclared (first use in this function)
    7 |         printf("%d",x+y);
      |                     ^
foo.c:7:21: note: each undeclared identifier is reported only once for each function it appears in
foo.c:7:23: error: 'y' undeclared (first use in this function)
    7 |         printf("%d",x+y);
      |                       ^

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