let target = Int(readLine()!)!
if target == 1 {
print(0)
}else {
var isPrime = Array(repeating: true, count: target+1)
var num = [Int]()
var n = 0
var e = 0
var sum = 0
var cnt = 0
for i in 2...target where isPrime[i] {
var j = 2
while i*j <= target {
isPrime[i*j] = false
j += 1
}
if isPrime[i] {
num.append(i)
}
}
n = num.count
for s in 0..<n {
while sum < target && e < n {
sum += num[e]
e += 1
}
if sum == target {
cnt += 1
}
sum -= num[s]
}
print(cnt)
}