Using regular expression to define a numeric string is a very common thing. Generally, use the shape as follows: (0|9|7) (5|6) (2) (4|5) Above regular expression matches 4 digits:The first is one of 0,9 and 7. The second is one of 5 and 6. The third is 2. And the fourth is one of 4 and 5. The above regular expression can be successfully matched to 0525, but it cannot be matched to 9634. Now,giving you a regular expression like the above formula,and a long string of numbers,please find out all the substrings of this long string that can be matched to the regular expression.
It contains a set of test data.The first line is a positive integer N (1 ≤ N ≤ 1000),on behalf of the regular representation of the N bit string.In the next N lines,the first integer of the i-th line is $a_i(1 ≤a_i≤ 10)$,representing that the i-th position of regular expression has $a_i$ numbers to be selected.Next there are $a_i$ numeric characters. In the last line,there is a numeric string.The length of the string is not more than 5 * 10^6.
Output all substrings that can be matched by the regular expression. Each substring occupies one line