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# your code goes here
n=int(input())
c=1
for i in range(1,n+1):
    for j in range(1,i+1):
        print(c,end=" ")
        c=c+1

Success #stdin #stdout 0.08s 14156KB

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stdout

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

https://ideone.com/o3FlWx

language:

Python 3 (python 3.12)

created:

visibility:

public

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