/*
let x = 0;

console.log("WHILE");
x = 20;
while(x <= 30){ // 0 .. *
    console.log(x);
    ++x;
}
*/
/*
x = 20;
if (x <= 30){ // 0 .. 1
    do {
        console.log(x);
        ++x;
    } while(x <= 30); // 1 .. *
}
*/
/*
console.log("FOR");
for(x = 20; x <= 30; ++x){
    console.log(x);
}
*/
/*
console.log("FOR EACH");
let data = ["Hello", "Labas", "Guten Tag"];
for(let i = 0; i < data.length; ++i){
    console.log(data[i]);
}
for(let x in data){
    console.log(data[x]);
}
for(let y of data){
    console.log(y);
}
*/