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#include <cstdio>

int main() {
    int N; scanf("%d\n",&N);
    int left = 20;
    char c[3]; int startow;
    for (int index = 1; index <= N && left > 0 && scanf("%c%c%c %d\n", &c[0], &c[1], &c[2], &startow) == 4; index++) {
        if (c[0] == 'T' && (left > 10 || startow < 2)) {
            if (left < 20) putchar(' ');
            printf("%d", index);
            left--;
        }
    }
    putchar('\n');
}