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#include <cstdio>
using namespace std;

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define INT(x) int x; scanf("%d", &x)
#define STR(n,x) char x[n]; scanf("%s", x)

int main() {
	INT(n);
	int k = 0;
	REP(i,n) {
		STR(4, s);
		INT(x);
		if (k < 20 && s[0] == 'T' && (k < 10 || x < 2)) {
			if (k) printf(" ");
			printf("%d", i + 1);
			++k;
		}
	}
	printf("\n");
}