#include #include #include #include #include #include #include #include #include #include using namespace std; #define ll long long #define FOR(i,j,k) for(int i =j; i<=k ;i++) #define ll long long #define pii pair const int maxn = 1000010; const ll mod = 9973; char s[100010]; ll a[100010]; ll fastmod(ll a, ll b) { ll ans =1; while(b) { if(b %2 == 1) ans =(ans* a)% mod; a =(a* a)% mod; b /=2; } return ans; } int main() { int n; while(~scanf("%d",&n)) { scanf("%s",s); int len = strlen(s); a[0] = 1; FOR(i,1,len) { a[i] =( a[i-1] * (s[i-1]- 28))% mod; } //cout<