Def addNumber(g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z):
    SumNum = g+h+ij+k+l+m+n+o+p+q+r+s+t+u+v+w+x+y+z
     return sumNum
print (addNumber(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20))