#include "io.inc" int f[2801]; int main() { int a = 10000; int b = 0; int c = 2800; int d = 0; int e = 0; int g = 0; for (; b - c != 0;) f[b++] = a / 5; for (;; e = d % a) { d = 0; g = c * 2; if (g == 0) break; for (b = c;; d = d * b) { d = d + f[b] * a; f[b] = d % --g; d = d / g--; if (--b == 0) break; } c = c - 14; printInt(e + d / a); } printStr("\n"); return judgeResult % Mod; // 137 }