#define FOR(a, b, c) for (a = b; a < c; a++) { #define NEXT }
#define a + b ADD(a, b)
(1+2)+3
#define FOR a=b TO c d NEXT for (a = b; a < c; a++) { d }
FOR i=0 TO 10 FOR i=0 TO 10 hoge NEXT NEXT