#include <stdio.h>
#include <string.h>
int main() {
char texto[100];
int i = 0, con = 0, tam;
fgets(texto
, 100, stdin
); char cesar[tam];
for(i = 0; i < tam; i++) {
if(texto[i] >= 'a' && texto[i] <= 'z')
cesar[i] = ((texto[i] - 97 + con) % 26 + 97);
else
cesar[i] = texto[i];
}
}
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