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c=(c-'A')%26+'a' c=c+32 c=c-'A'+'a' c=('A'+c)%26-'a'
58°26',51°34' 38°26',31°34' 48°26',41°34' 26°26',13°34'
C=(C一'A')%26+'a' C=C+32 C=C-'A'+'a' C=('A'+C)%26-'a'
c=(c-'A')%26+'a' c=c+32 c=c-'A'+'a' c=('A'+c)%26-'a'
55.45% 68.27% 95.47% 99.73% 99.99%
c=(c-'A')%26+'a' c=c+32 c=c-'A'+'a' c=('A'+c)%26-'a'