#include <stdio.h>

int main()
{
int original[[?]] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
int copied[10];
int loop;

for([?]; loop < 10; loop++)
{
copied[loop] = original[loop];
}
printf("original -> [?]");

for(loop = 0; loop < 10; loop++)
{
printf(" %2d %2d\n", original[loop], copied[loop]);
}

return 0;
}