#include using namespace std; #define REP(i,n) for(int i=0;i<(int)(n);i++) #define FOR(i,a,b) for(int i=(int)(a);i<(int)(b);i++) #define FORR(i,a,b) for(int i=(int)(b)-1;i>=(int)(a);i--) typedef long long ll; typedef pair pii; const ll MOD = 1000000007ll; int n; char s[125252]; const int N = 1<<17; ll dat1[2*N], dat2[2*N]; set sf; void set1(int p, ll v){ p += N-1; dat1[p] = v; while(p>0){ p = (p-1)/2; dat1[p] = dat1[2*p+1] * dat1[2*p+2] % MOD; } } void set2(int p, ll v){ p += N-1; dat2[p] = v; while(p>0){ p = (p-1)/2; dat2[p] = (dat2[2*p+1] + dat2[2*p+2]) % MOD; } } ll query1(int l, int r, int a, int b, int k){ if(r<=a || b<=l)return 1ll; if(l<=a && b<=r)return dat1[k]; int m = (a+b)/2; return query1(l,r,a,m,2*k+1) * query1(l,r,m,b,2*k+2) % MOD; } ll query2(int l, int r, int a, int b, int k){ if(r<=a || b<=l)return 0ll; if(l<=a && b<=r)return dat2[k]; int m = (a+b)/2; return (query2(l,r,a,m,2*k+1) + query2(l,r,m,b,2*k+2)) % MOD; } inline pii getrange(int p){ return *sf.lower_bound(pii(p, -1)); } int main(){ scanf("%d",&n); s[0] = '0'; s[1] = '+'; REP(i,n)scanf("%s",s+i+2); n += 2; s[n++] = '+'; s[n++] = '0'; // init mul(dat1) REP(i,n)dat1[i+N-1] = (isdigit(s[i]) ? s[i]-'0' : 1); FORR(i,0,N-1)dat1[i] = dat1[2*i+1] * dat1[2*i+2] % MOD; // get ranges split by '+' int bef = 0; REP(i,n)if(s[i]=='+'){ int first = bef; int second = i-1; sf.insert(pii(second, first)); i++; bef = i; } // init add(dat2) for(pii P : sf){ int first = P.second; int second = P.first; dat2[first+N-1] = query1(first, second+1, 0, N, 0); } FORR(i,0,N-1)dat2[i] = (dat2[2*i+1] + dat2[2*i+2]) % MOD; // querying int Q; scanf("%d", &Q); while(Q--){ char buf[2]; int x, y; scanf("%s%d%d", buf, &x, &y); x = x-1+2; y = y-1+2; if(buf[0] == '!'){ // swap if(s[x]==s[y])continue; if(isdigit(s[x])){ swap(s[x], s[y]); // mul set1(x, s[x]-'0'); set1(y, s[y]-'0'); // add pii P; P = getrange(x); set2(P.second, query1(P.second, P.first+1, 0, N, 0)); P = getrange(y); set2(P.second, query1(P.second, P.first+1, 0, N, 0)); }else{ if(s[x]=='+')swap(x,y); // split at x ('*' -> '+') pii P = getrange(x); int first = P.second; int second = P.first; sf.erase(P); pii Q = pii(x-1, first); pii R = pii(second, x+1); sf.insert(Q); sf.insert(R); set2(Q.second, query1(Q.second, Q.first+1, 0, N, 0)); set2(R.second, query1(R.second, R.first+1, 0, N, 0)); swap(s[x], s[y]); // join at y ('+' -> '*') P = getrange(y-1); Q = getrange(y+1); set2(Q.second, 0ll); sf.erase(P); sf.erase(Q); R = pii(Q.first, P.second); sf.insert(R); set2(R.second, query1(R.second, R.first+1, 0, N, 0)); } }else{ // answer pii P = getrange(x); pii Q = getrange(y); ll ans = 0ll; if(P==Q){ ans = query1(x, y+1, 0, N, 0); }else{ ans = query1(x, P.first+1, 0, N, 0); ans += query1(Q.second, y+1, 0, N, 0); ans += query2(P.first+1, Q.second, 0, N, 0); ans %= MOD; } printf("%lld\n", ans); } } return 0; }