input: [0] Java keyword [1] native [2] false [3] finally [4] N/A [5] float [6] for [8] N/A [9] goto1 [10] if [11] N/A [12] N/A [13] int [14] interface [15] protected [16] instanceof [17] synchronized [18] long [19] package [20] new [21] null [22] N/A [7] 
output: for