Explore the errors reported by antlr4 by yourself:
line 1:14 token recognition error at '('
means that: (the column number needs to be + 1) the symbol recognition error ‘(‘) in 1 row and 14 columns; it means that the symbol ‘(‘) not recognized by G4 rules does not affect the operation
line 1:0 token recognition error at: '7'
in 1 row and 1 column: ‘7’ symbols have no matching rules