17 lines
535 B
Text
17 lines
535 B
Text
CLS
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INPUT "Enter a string: ", s$
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ans$ = ""
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FOR a = 1 TO LEN(s$)
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letter$ = MID$(s$, a, 1)
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IF letter$ >= "A" AND letter$ <= "Z" THEN
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char$ = CHR$(ASC(letter$) + 13)
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IF char$ > "Z" THEN char$ = CHR$(ASC(char$) - 26)
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ELSEIF letter$ >= "a" AND letter$ <= "z" THEN
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char$ = CHR$(ASC(letter$) + 13)
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IF char$ > "z" THEN char$ = CHR$(ASC(char$) - 26)
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ELSE
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char$ = letter$
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END IF
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ans$ = ans$ + char$
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NEXT a
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PRINT ans$
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