function diff(a, b) {
    return Math.abs(a - b);
}
function Main(input) {
    var inputs = input.split("\n");
    var firstline = input[0].split(" ");
    var n = parseInt(firstline[0], 10);
    var s = parseInt(firstline[1], 10);
    var k = parseInt(firstline[2], 10);
    var index = -1;
    var ans = -1;
    var min = Infinity;
    for (let i = 0; i < 9; i++) {
        var x = parseInt(inputs[i + 1], 10);
        var res = Math.min(min, x);
    }
    console.log(res)
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));