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#include <cstdio>
#include <cstdlib>
#include <cstring>

int main() {
    int n;
    scanf("%d\n", &n);

    int chosen = 0;

    for (int i = 0; i < n; i++) {
        char word[8];
        int x;
        scanf("%s %d\n", word, &x);

        if (strcmp(word, "TAK") == 0) {
            if (chosen < 10 || x < 2) {
                if (chosen == 0) {
                    printf("%d ", i + 1);
                } else {
                    printf(" %d", i + 1);
                }
                chosen++;
                if (chosen == 20) {
                    break;
                }
            }
        }
    }

    return 0;
}