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

int main(int argc, char const *argv[])
{
    int i;
    char nome[500];
    FILE *entrada,*saida;

    entrada = fopen("entrada.txt","r");
    saida = fopen("saida.txt","w");

    fscanf(entrada,"%s",nome);

    for(i=0;i<strlen(nome);i++){
        if(nome[i]>57){
            fprintf(saida,"%c",nome[i]);
        }
    }

    fclose(entrada);
    fclose(saida);
    return 0;
}