func solve() {
    guard let input1 = readLine(),
          let NS = input1.split(separator: " ").compactMap({Int($0)}) as? [Int],
          let N = NS.first, let S = NS.last
    else { return }
    
    guard let input2 = readLine(),
          let seq = input2.split(separator: " ").compactMap({Int($0)}) as? [Int]
    else { return }
    
    var minLength = Int.max
    var L = 0, R = 0
    var acc = 0
    
    while true {
        if acc >= S {
            minLength = min(minLength, R-L)
            acc -= seq[L]
            L += 1
        }
        else if R == N {
            break
        }
        else {
            acc += seq[R]
            R += 1
        }
    }
    
    let result = minLength == Int.max ? 0 : minLength
    print(result)
}

solve()