// #pragma GCC target("avx2,avx512f,avx512vl,avx512bw,avx512dq,avx512cd,avx512vbmi,avx512vbmi2,avx512vpopcntdq,avx512bitalg,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("Ofast")

#include<bits/stdc++.h>
using namespace std;

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);

    int n, k;
    cin >> n >> k;

    stack<int>st;
    int cur = 0;
    st.push(0);
    while (k--) {
        string s;
        cin >> s;
        if (s[0] == 'u') {
            int m;
            cin >> m;
            while (m-- && st.size()) {
                st.pop();
            }
            cur = st.top();
        }
        else {
            int p = stoi(s);
            int nw = (cur + p);
            while (nw < 0)nw += n;
            nw %= n;
            cur = nw;
            st.push(nw);

        }
    }

    cout << cur << "\n";
}