1; Not correct, e.g. 2
 2(integer)
 3
 4; Minimum correct sentence, e.g.  2 1     2
 5(integer integer    integer)
 6
 7; Successively more complex sentences. e.g. 2 10      989080890\
 8;                                                     123213123
 9(integer integer    integer backslash integer)
10
11; 2 10      989080890 . 2132312
12(integer integer    integer period integer)
13
14; 2 10       3 ^ 6
15(integer integer    integer ^ integer)
16
17; 2 10      55 . 3333232432\
18;                23434234
19(integer integer    integer period integer backslash integer)
20
21; 2 10      55 . 3333232432 . 12313 . 21 ^ 22332\
22;                                          23434234\
23;                                          454 . 23 ^ 32
24(integer integer    integer period integer period integer ^ integer backslash integer backslash integer period integer ^ integer)