foo.c: In function 'main':
foo.c:6:10: warning: statement with no effect [-Wunused-value]
    6 |         a>b;
      |         ~^~
foo.c:7:10: warning: statement with no effect [-Wunused-value]
    7 |         b>c;
      |         ~^~
foo.c:8:9: warning: 'a' is used uninitialized [-Wuninitialized]
    8 |         printf("%d,%d,%d\n",a,b,c);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:8:9: warning: 'b' is used uninitialized [-Wuninitialized]
foo.c:8:9: warning: 'c' is used uninitialized [-Wuninitialized]

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