In this case, defendant challenges his 84-month sentence for conspiracy to distribute cocaine and cocaine base, arguing that the district court erred in declining to consider any 18 U.S.C. section 3553(a) factors other than substantial assistance when determining the extent of his sentence reduction below the mandatory minimum. Sentencing judgment is affirmed, where a district court may not consider factors other than the value of substantial assistance when sentencing below a statutory minimum, pursuant to section 3553(e).