#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main() {
    char ent[3] = {'E','0'};
    char saida[10];
    int n=5;

    for (int i = 0; i < n; i++) {
        sprintf(saida, "%s%01d", ent, i);
        printf("novo ent: %s \n ",saida);
    }
    return 0;
}