#include #include #include #include #include #include #include #include #include #include #include #include #define CL(arr, val) memset(arr, val, sizeof(arr)) #define REP(i, n) for((i) = 0; (i) < (n); ++(i)) #define FOR(i, l, h) for((i) = (l); (i) <= (h); ++(i)) #define FORD(i, h, l) for((i) = (h); (i) >= (l); --(i)) #define L(x) (x) << 1 #define R(x) (x) << 1 | 1 #define MID(l, r) (l + r) >> 1 #define Min(x, y) x < y ? x : y #define Max(x, y) x < y ? y : x #define E(x) (1 << (x)) const double eps = 1e-4; typedef long long LL; const int inf = ~0u>>2; using namespace std; const int N = 110; const int M = 1000010; const int MOD = 1e9 + 7; int c[N][N]; int k[M], t[M]; int num, n; int prime[N*20]; bool vis[N*20]; int cnt; void get_prime() { CL(vis, true); int i, j; for(i = 2; i < N*20; ++i) { for(j = i*i; j < N*20; j += i) { vis[j] = false; } } cnt = 0; for(i = 2; i < N*20; ++i) { if(vis[i]) prime[cnt++] = i; } } void init() { get_prime(); CL(c, 0); int i , j; for(i = 0; i < N; ++i) c[i][0] = c[i][i] = 1; for(i = 2; i < N; ++i) { for(j = 1; j < i; ++j) { c[i][j] = (c[i-1][j] + c[i-1][j-1])%MOD; } } } LL solve(int x) { int m = n, flag = 1, i; for(i = 0; i < n; ++i) { if(((1<= 1; --i) { ans = (ans + solve(i))%MOD; } cout << (ans%MOD + MOD)%MOD << endl; } return 0; }