big o, little o, big theta

Find two functions f(n) and gin) that satisfy the following relationship If nosuch f and g exist, write None f(n)-og(n) and f(n)#8(g(n)) fn) 0(g(n)) and f(n)-o(g(n)) f(n)-0(g(n)) and f(n)#0(g(n)) f(nPQg(n) and f(n)#0(g(n))