How many parts and actions are there for the Sacrament of Penance?
There are three. Firstly, Contrition, or the sorrow of the soul, the detesting of one's sins, and the aspiring toward a better life. Secondly, Confession, or the explication made of one's sins in the presence of the priest, and thereupon Satisfaction, or taking up the restitution and punishment for one's crimes in order to furnish worthy fruits of Penance.
[St. Peter Canisius, A Small Catechism for Catholics, Grant, tr., Mediatrix Press (2014), p. 64.]