test2.tok

ID                   b                         0               0              
OPERATOR             ASSIGN                    0               2              
ID                   b                         0               4              
OPERATOR             ADD                       0               6              
INTNUMBER            1                         0               7              
DELIMITER            SEMICOLON                 0               8              
KEYWORD              int                       1               0              
ID                   a                         1               4              
OPERATOR             ASSIGN                    1               6              
ERROR: Number format error. In line 1, position 8.