华为 od

# x=input()
# f=x.split(" ")
f=[2,9]
xf=[int(i) for i in f]
lxf=[]
lxf.append(xf[0])
for i in range(xf[1]):
        lxf.append(lxf[-1] + 1)
lxf2=[]
for i in range(xf[1]+1):
    if lxf[:i] :
        lxf2.append(lxf[:i])
    if len(lxf[:i])==len(lxf):
        break
sr=[]
for i in lxf2:
    s = ''
    for k in i:
        s+=str(k)
    sr.append(int(s))
print(sr)
print(sum(sr))

[2, 23, 234, 2345, 23456, 234567, 2345678, 23456789, 2345678910]

2371742004

s=[]
s.append(f[0])
for i in range(1,f[1]):
    k=f[0]+i
    s.append(int(str(s[-1])+str(k)))
print(s)
print(sum(s))

[698, 698699, 698699700, 698699700701, 698699700701702, 698699700701702703, 698699700701702703704, 698699700701702703704705, 698699700701702703704705706]

699399099801504207912618318