31_format function.py

'''
1   
2   3   
4   5   6   
7   8   9   10  
11  12  13  14  15  
16  17  18  19  20  21  
22  23  24  25  26  27  28  
29  30  31  32  33  34  35  36  
37  38  39  40  41  42  43  44  45  
46  47  48  49  50  51  52  53  54  55  
'''


row =  int(input("Enter Number:  "))

n  =1
for i in range(1,row+1):
    for j in range(1,i+1):
        print(format(n,"<3"),end=" ")
        n = n+1
    print()