https://cses.fi/paste/dce41542e393a739ab799/
#1 n=int(input()) print(n,end=" ") while n!=1: if n%2==0: n=n//2 else: n=n*3+1 print(n,end=" ")
https://cses.fi/paste/dce41542e393a739ab799/
#1 n=int(input()) print(n,end=" ") while n!=1: if n%2==0: n=n//2 else: n=n*3+1 print(n,end=" ")