/in/foo.c:1:1: error: unknown type name 'var'
 var
 ^~~
/in/foo.c:2:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
   n,m,r,t:real;
          ^
/in/foo.c:3:1: error: unknown type name 'begin'
 begin
 ^~~~~
/in/foo.c:4:3: warning: parameter names (without types) in function declaration
   readln(m,n,r);
   ^~~~~~
/in/foo.c:5:3: error: expected identifier or '(' before 'if'
   if m-n>0 then
   ^~
/in/foo.c:8:16: error: expected ')' before ':' token
       writeln(t:0:3);
                ^
/in/foo.c:10:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'else'
   else
   ^~~~
/in/foo.c:12:4: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
 end.
    ^