/in/foo.c: In function 'main':
/in/foo.c:7:6: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
  if(a>b>c)
     ~^~
/in/foo.c:9:11: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
  else if(a>c>b)
          ~^~
/in/foo.c:11:11: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
  else if(b>c>a)
          ~^~
/in/foo.c:13:11: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
  else if(b>a>c)
          ~^~
/in/foo.c:15:11: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
  else if(c>a>b)
          ~^~