What number is obtained by adding the units digits of 734^99 and 347^82?	Choose the correct choice from the following.
A) 10 B) 11 C) 12 D) 13 E) 14
The units digit of 734^99 is 4 because 4 raised to the power of an odd integer ends in 4.   The units digit of 347^82 is 9 because powers of 7 end in 7, 9, 3, or 1 cyclically. Since 82 is in the form 4n+2, the units digit is 9.   Then   4+9= 
<gadget id="calculator">  4+9</gadget>
<output>13</output>
13.   The answer is 13.
<result>D</result>
What number is obtained by adding the units digits of 734^99 and 347^82?