x : integer –– global procedure set x(n : integer) x := n procedure print x write integer(x) procedure first set x(1) print x procedure second x : integer set x(2) print x set x(0) first() print x second() print x What does this program print if the language uses static scoping? What does it print with dynamic scoping? Explain your answers.

Asequential circuit contains a register of four flip-flops. initially a binary number n (0000 ≤ n ≤ 1100) is stored in the flip-flops. after a single clock pulse is applied to the circuit, the register should contain n + 0011. in other words, the function of the sequential circuit is to add 3 to the contents of a 4-bit register. design and implement this circuit using j-k flip-flops.