[label1 setTextAlignment: NSTextAlignmentLeft];
[label2 setTextAlignment: NSTextAlignmentRight];
label2.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;
[label1 setTextAlignment: NSTextAlignmentLeft];
[label2 setTextAlignment: NSTextAlignmentRight];
label2.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin;