The following are headlines from recent news reports.
All five are encrypted with the same mixed alphabet at
different settings against itself. Find each headline and
the three key words (SETTING, KEY and HAT).
1. REC MGCSF MECFU SGYYRDQFCU GBFC DXSZFRC YEN-XW
2. KNXP FAOJXMX AJSM XCQUBFJQX CLCFQXB ARCQACS
3. DRDAMAX QXNJIYU QLRXJQ ITP IB SXNNAXER
4. WPMCCXW IKB IC HXXHB TQHKW HFCOI WIHAM
5. UGN MFFZ CFLXBFDRVFQ HRSP ED HGUVGD