foo.c: In function 'main':
foo.c:6:3: error: expected declaration specifiers before 'if'
   if(a>b,b>c)
   ^~
foo.c:5:10: error: declaration for parameter 'c' but no such parameter
  int a,b,c;
          ^
foo.c:5:8: error: declaration for parameter 'b' but no such parameter
  int a,b,c;
        ^
foo.c:5:6: error: declaration for parameter 'a' but no such parameter
  int a,b,c;
      ^
foo.c:9:3: error: expected '{' at end of input
   }
   ^

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