| #define \u0025(x) x*x | |
| #define ??/u0027(x) x+x | |
| /*1*/ \u0025(10); | |
| /*2*/ ??/u0025(20); | |
| /*3*/ \u0027(30); | |
| /*4*/ ??/u0027(40); | |
| /*5*/ ??/u002\ | |
| 5(50); | |
| \u0025(/*6*/??=/*7*/) | |
| #define TRIGRAPH /*8*/ ??( /*9*/ | |
| /*10*/ TRIGRAPH //11 | |
| #define ALPHA /*12*/ a \ | |
| b \ | |
| \ | |
| c //13 | |
| /*14*/ ALPHA //15 | |