#include <stdio.h>
int main()
{
int i, x;
char str[9];
while((x
= scanf("%d", &x
)) != 0) {
i = 0;
str[i++] = x % 2;
while(x/2)
{
x /=2;
str[i++] = x % 2;
}
while(i--)
{
}
}
return 0;
}
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