Problem:
Score : 200 points

Problem Statement

A ball will bounce along a number line, making N + 1 bounces. It will make the first bounce at coordinate D_1 = 0, and the i-th bounce (2 \leq i \leq N+1) at coordinate D_i = D_{i-1} + L_{i-1}.

How many times will the ball make a bounce where the coordinate is at most X?

Constraints

1 \leq N \leq 100

1 \leq L_i \leq 100

1 \leq X \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N X
L_1 L_2 ... L_{N-1} L_N

Output

Print the number of times the ball will make a bounce where the coordinate is at most X.

Sample Input 1

3 6
3 4 5

Sample Output 1

2

The ball will make a bounce at the coordinates 0, 3, 7 and 12, among which two are less than or equal to 6.

Sample Input 2

4 9
3 3 3 3

Sample Output 2

4

The ball will make a bounce at the coordinates 0, 3, 6, 9 and 12, among which four are less than or equal to 9.

Solution in Rust (1.15.1) (judge verdict: Accepted)

use std::io;
use std::str::FromStr;
 
fn main() {
    let (n, x) = {
        let mut buf = String::new();
        io::stdin().read_line(&mut buf).unwrap();
        let mut it = buf.split_whitespace();
        (usize::from_str(it.next().unwrap()).unwrap(),
        i32::from_str(it.next().unwrap()).unwrap())
    };
    let l = {
        let mut l: Vec<i32> = Vec::new();
        let mut buf = String::new();
        io::stdin().read_line(&mut buf).unwrap();
        let it = buf.split_whitespace();
        for ln in it {
            l.push(i32::from_str(ln).unwrap());
        }
        l
    };

    let mut d = 0;
    let mut ans = 0;
    for ln in l {
        d = d + ln;
        if d <= x {
            ans += 1;
        }
    }
    println!("{}", ans + 1);
}