1integer 1 integer 123 integer 12345 2identifier A123 identifier A_A 3 4COMMENT /*XXXX*/ 5COMMENT //XXXX 6 7COMMENT /*MULTI LINE*/ 8 9[ [ 10] ] 11* * 12. . 13( ( 14) ) 15{ { 16} } 17[ [ 18] ] 19, , 20; ; 21: : 22= = 23+ + 24- - 25/ / 26~ ~ 27| | 28& & 29^ ^ 30> > 31< < 32 33ELLIPSIS ... 34 35float 1.1 36float 1e1 37float -1.1 38float -1e1 39float 1e-1 40float -1e-1 41float 1.0e1 42float -1.0e-1 43 44integer 00 45integer 01 46integer 0123 47integer 01234567 48integer 123 49integer 1234567890 50integer 0x123 51integer 0X123 52integer 0x1234567890AbCdEf 53integer 0X1234567890aBcDeF 54 55identifier blah 56