$4\mathrm{.}3.b.c4.o12$

Suppose that num is an int variable and ch is a char variable and the input is:

$17A$

What are the values in num and ch after the following statements execute?

cin $$ num;

cin $ch$;

num $=17,ch=A^{\text{'}}$

num $=17,ch=a$

num $=1,ch=7$

num $=17.c_h=$