33+18

(a)  

80+18

(a)  

42+44

(a)  

17+54

(a)  

30+38

(a)  

13+50

(a)  

27+58

(a)  

33+37

(a)  

29+53

(a)  

14+18

(a)  

78+16

(a)  

17+59

(a)  

57+27

(a)  

35+59

(a)  

431+450

(a)  

172+507

(a)  

973+980

(a)  

634+350

(a)  

129+731

(a)  

948+851

(a)  

677+310

(a)  

744+520

(a)  

592+978

(a)  

570+421

(a)