#pragma GCC optimize(2)
#pragma GCC optimize(3)
#pragma GCC optimize(4)
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pi acos(-1.0)
#define LL long long
//#define mp make_pair
#define pb push_back
#define ls rt<<1, l, m
#define rs rt<<1|1, m+1, r
#define ULL unsigned LL
#define pll pair<LL, LL>
#define pli pair<LL, int>
#define pii pair<int, int>
#define piii pair<pii, int>
#define mem(a, b) memset(a, b, sizeof(a))
#define fio ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define fopen freopen("in.txt", "r", stdin);freopen("out.txt", "w", stout);
//headchar s[10], t[10];
int main() {int n, k;scanf("%d %d", &n, &k);LL l = 1, r = (1LL<<n)-1, m = l+r >> 1;if(k <= n) {for (int i = 1; i <= k; i++) {printf("1\n");fflush(stdout);scanf("%s", s);if(s[0] == '=') exit(0);else if(s[0] == '>') break;}int cnt = 0;while(l < r) {++cnt;printf("%lld\n", m);fflush(stdout);scanf("%s", s);if(cnt%k == 0) {if(s[0] == '=') exit(0);else if(s[0] == '>') l = m+1;else r = m-1;}else {if(s[0] == '=') exit(0);else if(s[0] == '>') r = m-1;else l = m+1;}m = l+r >> 1;}printf("%lld\n", m);fflush(stdout);} else {bool f = true;while(l < r) {if(f) {printf("%lld\n", m);fflush(stdout);scanf("%s", s);printf("%lld\n", m);fflush(stdout);scanf("%s", t);if(s[0] != t[0]) {f = false;continue;}else if(s[0] == '=') exit(0);else if(s[0] == '>') r = m-1;else l = m+1; }else {printf("%lld\n", m);fflush(stdout);scanf("%s", s);if(s[0] == '=') exit(0);else if(s[0] == '>') r = m-1;else l = m+1; }m = l+r >> 1;}printf("%lld\n", m);fflush(stdout);}return 0;
}