int ('123')
\n ('\n')
$ ('$')
( ('(')
( ('(')
int ('123')
) (')')
) (')')
\n ('\n')
int ('123')
WHITE_SPACE (' ')
int ('456')
\n ('\n')
$ ('$')
( ('(')
( ('(')
int ('123')
WHITE_SPACE (' ')
int ('234')
) (')')
) (')')