##Grammar##

SINGLE_INPUT -> newline |SIMPLE_STMT |COMPOUND_STMT

STMT -> SIMPLE_STMT |COMPOUND_STMT

SIMPLE_STMT -> SMALL_STMT newline

SMALL_STMT -> EXPR_STMT |PRINT_STMT

PRINT_STMT-> print(EXPR)

EXPR_STMT -> EXPR _EXPR_STMT

_EXPR_STMT -> = EXPR_STMT |€

EXPR -> COMP EQ

EQ -> == COMP EQ |!= COMP EQ |€

COMP -> E _COMP

_COMP -> < E _COMP |> E _COMP |<= E _COMP |>= E _COMP |€

E -> T _E

_E -> + T _E |- T _E |€

T -> UNARY F _T

UNARY -> + UNARY |- UNARY |€

_T -> * UNARY F _T |/ UNARY F _T |% UNARY F _T

F -> id |value |(EXPR_STMT)

COMPOUND_STMT -> IF_STMT |WHILE_STMT

IF_STMT -> if COMP_STMT : SUITE _IF_STMT

_IF_STMT -> elif COMP_STMT : SUITE _IF_STMT |else : SUITE |€

WHILE_STMT -> while COMP_STMT : SUITE

SUITE -> SIMPLE_STMT |newline indent STMT _SUITE dedent

_SUITE -> STMT _SUITE |€

COMP_STMT -> E LIST_COMP EXPR

LIST_COMP -> < | > | <= | >= | == | !=