var week = ["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"];

week[::-2] = ["first", "second", "third"];

print week;


var str = "0123456789";

str[3:5:-2] = "abc";

print str;



str = "Hello world";

print str; //Hello world
print str[::2]; //Hlowrd
print str[::-2]; //drwolH