var lines = [];
var readline = require('readline');
 
var rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
});
 
rl.on('line', function (x) {
    lines.push(x);
});
 
rl.on('close', function () {
    var A = Number(lines[0].split(" ")[0]);
    var B = Number(lines[0].split(" ")[1]);
    var C = Number(lines[0].split(" ")[2]);
 
    if (A === B && A === C && B === C) { console.log("Yes") }
    else { console.log("No") }
});