s=input()
a=s[:-3]
b=s[-3:]
print(s[1:3])

print(a+","+b)

i=2
c=s[:-3*1]
d=s[-3*1:]
print(c+","+d)
print(c+","+a+","+b)
for i in range (1,3):
    ans=","+s[-3*i:]
    x,y=s[:-3*1] ,s[-3*1:]
    s=x+","+y