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;

macro_rules! get {
    ($t: ty) => {
        {
            let mut x = String::new();
            io::stdin().read_line(&mut x).ok();
            x = x.trim_right().to_owned();
            x.parse::<$t>().unwrap()
        }
    };
    ($($t: ty), *) => {
        {
            let mut x = String::new();
            io::stdin().read_line(&mut x).ok();
            x = x.trim_right().to_owned();
            let mut inter = x.split_whitespace();
            (
                $(inter.next().unwrap().parse::<$t>().unwrap(),)*
            )
        }
    };
}

macro_rules! insert_vec {
    ($t: ty) => {
        {
            let mut x = String::new();
            io::stdin().read_line(&mut x).ok();
            x = x.trim_right().to_owned();
            x.split_whitespace().map(|x| x.parse::<$t>().unwrap())
                .collect::<Vec<_>>()
        }
    };
}

macro_rules! word_chars_vec {
    () => {
        {
            let mut x = String::new();
            io::stdin().read_line(&mut x).ok();
            x = x.trim_right().to_owned();
            x.chars().collect::<Vec<_>>()
        }        
    };
}

macro_rules! two_vec {
    ($t: ty; $e: expr) => {
        {
            (0..$e).map(|_| insert_vec!($t)).collect::<Vec<_>>()
        }
    };
}


fn main () {
    let (n, x) = get!(usize, usize);
    let l_vec = insert_vec!(usize);
    let mut ans = 0;
    let mut l = 0;

    for i in 0..n{
        l = l + l_vec[i];
        if l <= x {
            ans += 1;
        };
    }
    println!("{}", ans + 1);

}