Imputation of Adam's Sin and of Christ's Righteousness

Imputation of Adam's Sin & Christ's Righteousness:

First, in v 18 - God's judgment and condemnation resulting from Adam's sin was imputed to all whom he represented.

Second, at the end of v 18 - Christ's righteous act (of perfect obedience) resulting in justification was imputed to all whom He represented.

Third, in v 19 - By imputation, Adam's disobedience made many sinners and, in a similar way, Christ's obedience made many righteous.