foo.c: In function 'main':
foo.c:5:32: error: expected expression before ',' token
    5 |         scanf("%d %d %d",&a,&m,,&k);
      |                                ^
foo.c:6:20: error: expected expression before '<' token
    6 |         if (a/20.0)<m
      |                    ^
foo.c:8:18: error: expected expression before '>' token
    8 |         if (a/20)>m
      |                  ^

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