Only thing to mark here is that there are multiple whitespaces in the test cases which needs to be there in our output as well.

Simple Solution:

def solve(s):

l=[]

for i in s:
    l.append(i)

l[0] = l[0].upper()  

for i in range(1,len(l)):

    if l[i-1]==" ":
        l[i] = l[i].upper()

ans = "".join(l)
return ans