#include using namespace std; struct node { int l, r; long long s; node() { l = r = 0; s = 0; } node(int _l, int _r) { l = _l; r = _r; s = 0; } } tr[1000005 << 2]; long long n, w, a, b; char op; void pushup(int u) { tr[u].s = tr[u << 1].s + tr[u << 1 | 1].s; } void build(int u, int l, int r) { tr[u] = node(l, r); if (l == r) return; int mid = l + r >> 1; build(u << 1, l, mid); build(u << 1 | 1, mid + 1, r); } void modify(int u, int x, int d) { if (tr[u].l == tr[u].r) { tr[u].s += d; return; } int mid = tr[u].l + tr[u].r >> 1; if (x <= mid) modify(u << 1, x, d); else modify(u << 1 | 1, x, d); pushup(u); } long long query(int u, int l, int r) { if (l <= tr[u].l && tr[u].r <= r) { return tr[u].s; } int mid = tr[u].l + tr[u].r >> 1; long long s = 0; if (l <= mid) s += query(u << 1, l, r); if (r > mid) s += query(u << 1 | 1, l, r); return s; } int main() { cin >> n >> w; build(1, 1, n); while (w--) { cin >> op >> a >> b; if (op == 'x') { modify(1, a, b); } else if (op == 'y') { cout << query(1, a, b) << endl; } } return 0; }