#include using namespace std; int primes[] = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251}; uint64_t counter = 0; int P; uint64_t cache[54]; uint64_t jump(int i){ if(cache[i]!=UINT64_MAX){ // printf("\t\tcache hit prime %d has %d possib\n",primes[i], cache[i]); return cache[i]; } if(primes[i] == P){ return 1; } int acc = 0; for (int j = min(54, i+14); j > i; j--){ if(primes[j] - primes[i] < 15 && primes[j]<= P){ // printf("%d --> %d\n", primes[i], primes[j]); uint64_t tmp = jump(j); // printf("%d --> %d = %d\n", primes[i], primes[j], tmp); acc += tmp; } } // printf("\t%d --> %d has %d possib\n\n", primes[i], P, acc); cache[i] = acc; return cache[i]; } int32_t main() { scanf("%d", &P); for (size_t i = 0; i < 54; i++) { cache[i]=UINT64_MAX; if(primes[i]==P){ cache[i] = 1; } } counter = jump(0); // printf("P %d Pi %d\n\n", P, P_i); printf("%lu\n", counter); return 0; }