Why am I getting percentile at the end of my result?

for i in range(1, 20):  
    if i==13:  
        pass 
    else:  
        print(i, end= " ") 

Output in vscode terminal:

1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 %                                                                                                         

Expecting output:

1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19