#include <cstdio>
#include <iostream>
#include <vector>

int main() {
    int test_cases;

    std::scanf("%d", &test_cases);

    char * test_case2 = (char *) malloc(10000000 * sizeof(char));
    char * token2 = (char *) malloc(10000000 * sizeof(char));

    while (test_cases != 0) {

        size_t pos = 0;
        int i = 1;
        int count = 0;
        std::vector<size_t> positions;

        std::fscanf(stdin, "%s %s", test_case2, token2);

        std::string test_case = test_case2;
        std::string token = token2;

        while ((pos = test_case.find(token)) != std::string::npos) {

            positions.push_back(pos + i);

            i += pos + 1;
            test_case.erase(0, pos + 1);
            count++;
        }

        if (positions.size() == 0) {
            std::printf("Not Found");
        } else {
            std::printf("%d\n", count);
            for (size_t pos : positions) {
                std::printf("%d ", pos);
            }
        }

        std::printf("\n\n");

        test_cases--;
    }


    return 0;
}