print join ' ', ('123456789') x 20; 
print join "\t", ('xx') x 50;;

123456789 123456789 123456789 123456789 123456789 123456789 123456789 
xx      xx      xx      xx      xx      xx      xx      xx      xx   

123456789 123456789 123456789 123456789 123456789 123456789
   xx      xx      xx      xx  xx  xx      xx      xx      xx

...........................^...^...^