# a=[1,3,4,5,"a",4,"n","k",2,"i","t",7,"a"]
# i=0
# s=[]
# while i<len(a):
#     if type (a[i])==str:
#         s.append(a[i])
#     i=i+1
# print(s)


# a=[1,2,3,4,"p","y","t","h","o","n"]
# i=0
# s=[]
# while i<len(a):
#     if type(a[i])==int:
#         s.append(a[i])
#     i=i+1
# print(s)


a=input("enter the name")
i=0
while i<len(a):
    j=0
    while j<=i:
        print(a,(j),end="")
        j=j+1
    i=i+1
    


