#include <stdio.h>

int main( int argc, char * argv[] )
{
 FILE *in =fopen(argv[1],"r");
 char c;

 if(in==NULL)
    return 0;

    while(fscanf(in,"%c",&c)!=EOF)
    {
        if(c>=48 && c<=57)
            printf("%c\n",c);
    }

fclose(in);
return 0;
}