Just And Product

Consider two non-negative long integers $a$ and $b$ where $a<=b$. The bitwise AND of all long integers in the inclusive range between $a$ and $b$ can be expressed as $a&(a+1)&...&(b-1)&b$, where $&$ is the bitwise AND operator. Given $n$ pairs of long integers, $a[i]$ and $b[i]$, compute and print the bitwise AND of all natural numbers in the inclusive range between $a[i]$ and $b[i]$. For exampl