#include <stdio.h>
#include <string.h>
int main(){
char frase[200];
for(int i
=0; i
< strlen(frase
); i
++){
if(frase[i] >= 65 && frase[i] <= 90){
frase[i] = (((frase[i] - 65) + 3) % 26) + 65;
}else{
frase[i] = 32;
}
}
}
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