A - Acknowledge that you are a sinner.  The Bible says, "For all have sinned and come short of the glory of God."  (Romans 3:23)

B - Believe that Christ died for you and suffered the penalty for your sins.  The Bible says, "But God commendeth his love toward us, in that, while we were yet sinners, Christ died For Us."  (Romans 5:8)

C - Confess your need of a Saviour and call upon the Lord Jesus Christ to save you.  The Bible says, "Believe on the Lord Jesus Christ and thou shalt be saved..."  (Acts 16:31)  "For whosoever shall call upon the name of the Lord shall be saved."  (Romans 10:13)