"use strict";
    
const main = arg => {
    arg = arg.split("\n");
    const N = arg[0];
    const D = arg[1].split(" ")[0];
    const X = arg[1].split(" ")[1];
    const A = arg.slice(2);
    
    let original = 0;
    
    for(let i=0; i<A.length; i++) {
        for(let j=0; (j * A[i]) + 1 <= D; j++) {
            original++;
        }
    }
    
    console.log(parseInt(original) + parseInt(X));
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));