print "full form -------------------------";
for (var i = 0; i < 100; i = i + 20) print i;

print "without init ----------------------";
var n = 100;
for (;n > 0; n = n - 20) print n;

print "only cond -----------------------";

var i = 1;
for (;i < 100;) {
    print i;
    i = i + 10;
}

print "inf ---------------------------";

var b = 0;
for {
    print b;
    b = b + 5;
    if (b > 10) break;

    print "after break";
}

print "fibonachi ------------------------";
var temp;
var first = 0;

for (var second = 1; first < 10000; second = temp + second) {
    print first;
    temp  = first;
    first = second;
}