A,B=input().split()
if B[0]=='-':
  print(int(A)+int(B))
else:
  P=A+B
  if P[0]!='-':
    while len(P)!=1 and P[0]=='0':
      P=P[1:len(P)]
  else:
    while len(P)!=2 and P[1]=='0':
      P=P[0]+P[2:len(P)]
    if P=='-0':
      P=0
  print(P)