"use strict";
function Main(input) {
    let BoxLength;
    let Blockqty;
    let Blocks;
    let j, k;
    j = 0;
    k = 0;
    BoxLength = Number(input.split("\n")[0]);
    Blockqty = Number(input.split("\n")[1]);
    Blocks = input.split("\n")[2].split(" ").map((i) => Number(i)).sort((a, b) => a - b);
    do {
        j += Blocks[k];
        ++k;
    } while (j <= BoxLength && k != (Blockqty - 1));
    console.log(k - 1);
}
//テストの入力を受け取る
Main(require("fs").readFileSync("/dev/stdin", "utf8"));
//Main("150\n5\n151 151 151 151 10");
//# sourceMappingURL=index.js.map