state on the record that it has explicitly considered each of the § 3553(a) factors or to discuss each of the § 3553(a) factors." United States v. Valnor, 451 F.3d 744, 751 (11th Cir. 2006) (citing United States v. Thomas, 446 F.3d 1348, 1357 (11th Cir. 2006)). When a sentence is reviewed by an appel