.code.tio:2:16: error: \u0023 is not a valid universal character
#define def(j)\u0023define
^
.code.tio:3:17: error: \u000a is not a valid universal character
#define s(j) j \u000as(#j)
^
.code.tio:4:16: error: \u000a is not a valid universal character
s(def() a(a)(n)n\u000a def()def\u0028j\u0029\u005Cu0023define\u000a def()s\u0028j\u0029 j \u005Cu000as\u0028#j\u0029)
^
.code.tio:4:29: error: \u0028 is not a valid universal character
s(def() a(a)(n)n\u000a def()def\u0028j\u0029\u005Cu0023define\u000a def()s\u0028j\u0029 j \u005Cu000as\u…