display elements of tape
System . out . print ( " tape ▁ " + ( i + 1 ) + " ▁ : ▁ [ ▁ " ) ; for ( j = 0 ; j < n ; j ++ ) { if ( v [ i ] [ j ] != 0 ) { System . out . print ( v [ i ] [ j ] + " ▁ " ) ; } else { break ; } } System . out . print ( " ] " ) ;