Input Format The input of your program is specified by the following context-free grammar: input tokens section token_list token_list token expr expr expr expr expr tokens section INPUT TEXT token_list HASH token token COMMA token_list ID expr CHAR LPAREN expr RPAREN DOT LPAREN expr RPAREN LPAREN expr RPAREN OR LPAREN expr RPAREN LPAREN expr RPAREN STAR UNDERSCORE Where ...IzIAIBI CHAR LETTER SPACE INPUTTEXT " . (CHAR | SPACE)* . COMMA LPAREN RPAREN STAR DOT OR UNDERSCORE ' ID = a1b1 - LETTER . CHAR* In the description of regular expressions, UNDERSCORE represents epsilon Input Format The input of your program is specified by the following context-free grammar: input tokens section token_list token_list token expr expr expr expr expr tokens section INPUT TEXT token_list HASH token token COMMA token_list ID expr CHAR LPAREN expr RPAREN DOT LPAREN expr RPAREN LPAREN expr RPAREN OR LPAREN expr RPAREN LPAREN expr RPAREN STAR UNDERSCORE Where ...IzIAIBI CHAR LETTER SPACE INPUTTEXT " . (CHAR | SPACE)* . COMMA LPAREN RPAREN STAR DOT OR UNDERSCORE ' ID = a1b1 - LETTER . CHAR* In the description of regular expressions, UNDERSCORE represents epsilon