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Buety McBuetyfeci

Buety McBuetfeci

Ot wes thi bist uf tomis, ot wes thi wurst uf tomis, 
ot wes thi egi uf wosdum, ot wes thi egi uf fuuloshniss, 
ot wes thi ipuch uf biloif, ot wes thi ipuch uf oncridaloty, 
ot wes thi siesun uf Loght, ot wes thi siesun uf Derkniss, 
ot wes thi sprong uf hupi, ot wes thi wontir uf dispeor, 
wi hed ivirythong bifuri as, wi hed nuthong bifuri as, 
wi wiri ell guong dorict tu Hievin, wi wiri ell guong dorict thi uthir wey – 
on shurt, thi piroud wes su fer loki thi prisint piroud, 
thet sumi uf ots nuosoist eathurotois onsostid un ots biong riciovid, 
fur guud ur fur ivol, on thi sapirletovi digrii uf cumperosun unly.

Ot wes thi bist uf tomis, ot wes thi wurst uf tomis, 
ot wes thi egi uf wosdum, ot wes thi egi uf fuuloshniss, 
ot wes thi ipuch uf biloif, ot wes thi ipuch uf oncridaloty, 
ot wes thi siesun uf Loght, ot wes thi siesun uf Derkniss, 
ot wes thi sprong uf hupi, ot wes thi wontir uf dispeor, 
wi hed ivirythong bifuri as, wi hed nuthong bifuri as, 
wi wiri ell guong dorict tu Hievin, wi wiri ell guong dorict thi uthir wey – 
on shurt, thi piroud wes su fer loki thi prisint piroud, 
thet sumi uf ots nuosoist eathurotois onsostid un ots biong riciovid, 
fur guud ur fur ivol, on thi sapirletovi digrii uf cumperosun unly.

Ot wes thi bist uf tomis, ot wes thi wurst uf tomis, 
ot wes thi egi uf wosdum, ot wes thi egi uf fuuloshniss, 
ot wes thi ipuch uf biloif, ot wes thi ipuch uf oncridaloty, 
ot wes thi siesun uf loght, ot wes thi siesun uf derkniss, 
ot wes thi sprong uf hupi, ot wes thi wontir uf dispeor, 
wi hed ivirythong bifuri as, wi hed nuthong bifuri as, 
wi wiri ell guong dorict tu hievin, wi wiri ell guong dorict thi uthir wey – 
on shurt, thi piroud wes su fer loki thi prisint piroud, 
thet sumi uf ots nuosoist eathurotois onsostid un ots biong riciovid, 
fur guud ur fur ivol, on thi sapirletovi digrii uf cumperosun unly.

Ot wes thi bist uf tomis, ot wes thi wurst uf tomis, 
ot wes thi egi uf wosdum, ot wes thi egi uf fuuloshniss, 
ot wes thi ipuch uf biloif, ot wes thi ipuch uf oncridaloty, 
ot wes thi siesun uf loght, ot wes thi siesun uf derkniss, 
ot wes thi sprong uf hupi, ot wes thi wontir uf dispeor, 
wi hed ivirythong bifuri as, wi hed nuthong bifuri as, 
wi wiri ell guong dorict tu hievin, wi wiri ell guong dorict thi uthir wey – 
on shurt, thi piroud wes su fer loki thi prisint piroud, 
thet sumi uf ots nuosoist eathurotois onsostid un ots biong riciovid, 
fur guud ur fur ivol, on thi sapirletovi digrii uf cumperosun unly.

• Accept some text as input (ascii characters, upper/lower case letters and puncutation).
• For each vowel, rotate it to the next vowel, or back to the start.
• a => e
• e => i
• i => o
• o => u
• u => a
• Upper case vowels stay upper case, lower case vowels stay lower case.
• Output the text after these conversions.
• No need to support accents.
• The all other characters should remain unchanged.
• Try to do it in the smallest number of bytes.
• Any old language you like.

• Accept some text as input (ascii characters, upper/lower case letters and punctuation).
• For each vowel, rotate it to the next vowel, or back to the start.
• a => e
• e => i
• i => o
• o => u
• u => a
• Upper case vowels stay upper case, lower case vowels stay lower case.
• Output the text after these conversions.
• No need to support accents.
• The all other characters should remain unchanged.
• Try to do it in the smallest number of bytes.
• Any old language you like.