通过从右移动到其原始位置，使一系列uibutton动画化

I don't have any idea of animation what so ever,I have used quite a few animations suggested,but nothing got working according to my requirement.I have a sequence of UIButtons displayed according to a word length,i.e. each button contains a character of that word.So what I want to do is while placing the word itself,I want the buttons to come from right and get back to their mentioned positions(co-ordinates).Here is how I create buttons equal to word length.I don't have any idea of animation what so ever