<prompt> Programu ya Rust inachukua ujumbe kama pembejeo na kuificha kwa kutumia cipher ya Kaisari na ufunguo uliopewa; matokeo yanapaswa kuwa ujumbe uliofichwa kwa herufi kubwa bila nafasi au alama za punctuation; programu inapaswa kuhakikisha kwamba ufunguo ni nambari kamili kati ya 1 na 25; na kuchochea mtumiaji kuingiza ufunguo halali ikiwa ufunguo ni halali; cipher inapaswa kuzunguka hadi mwanzo wa alfabeti ikiwa mabadiliko ni zaidi ya 25.  <response>: Kifungu cha ujumbe ni Unencrypted na Unencrypted ni Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Unencrypted na Encrypt na Encrypt na Encrypted na Encrypt na Encrypt na Encrypt na Encrypt na Encrypt na Encrypt na Encrypt Encrypt na Encrypt Encrypt Encrypt Encrypt Encrypt Encrypt Encrypt Encrypt En Encrypt Encrypt Encrypt En EncryptEn En En En En En 