/in/foo.c:1:1: warning: data definition has no type or storage class
 s=0#
 ^
/in/foo.c:1:1: warning: type defaults to 'int' in declaration of 's' [-Wimplicit-int]
/in/foo.c:1:4: error: stray '#' in program
 s=0#
    ^
/in/foo.c:3:1: error: expected ',' or ';' before 'n'
 n=0#
 ^
/in/foo.c:3:4: error: stray '#' in program
 n=0#
    ^