1this is the big data file. it has to be over 1 page size in length. 0123456789 2these lines are all 80 long. this is the second line. 012345678901234567890123 34567890123456789012345678901234567890123456789012345678901234567890123456789012 43456789012345678901234567890123456789012345678901234567890123456789012345678901 52345678901234567890123456789012345678901234567890123456789012345678901234567890 61234567890123456789012345678901234567890123456789012345678901234567890123456789 7012345678901 this is the seventh line. 12345678901234567890123456789012345678 89012345678901234567890123456789012345678901234567890123456789012345678901234567 98901234567890123456789012345678901234567890123456789012345678901234567890123456 107890123456789012345678901234567890123456789012345678901234567890123456789012345 116789012345678901234567890123456789012345678901234567890123456789012345678901234 125678901234567890123456789012345678901234567890123456789012345678901234567890123 13456789 this is the 13th line, and there 127 lines in total. 67890123456789012 143456789012345678901234567890123456789012345678901234567890123456789012345678901 152345678901234567890123456789012345678901234567890123456789012345678901234567890 161234567890123456789012345678901234567890123456789012345678901234567890123456789 170123456789012345678901234567890123456789012345678901234567890123456789012345678 18901234567890123456789012345 this is the 18th line. 456789012345678901234567 198901234567890123456789012345678901234567890123456789012345678901234567890123456 207890123456789012345678901234567890123456789012345678901234567890123456789012345 216789012345678901234567890123456789012345678901234567890123456789012345678901234 225678901234567890123456789012345678901234567890123456789012345678901234567890123 234567890123456789012345678901234567890123456789012345678901234567890123456789012 243456789012345678901234567890123456789012345678901234567890123456789012345678901 252345678901234567890123456789012345678901234567890123456789012345678901234567890 261234567890123456789012345678901234567890123456789012345678901234567890123456789 270123456789012345678901234567890123456789012345678901234567890123456789012345678 289012345678901234567890123456789012345678901234567890123456789012345678901234567 298901234567890123456789012345678901234567890123456789012345678901234567890123456 3078901234567890123456 this is the 31st line. 345678901234567890123456789012345 316789012345678901234567890123456789012345678901234567890123456789012345678901234 325678901234567890123456789012345678901234567890123456789012345678901234567890123 334567890123456789012345678901234567890123456789012345678901234567890123456789012 343456789012345678901234567890123456789012345678901234567890123456789012345678901 352345678901234567890123456789012345678901234567890123456789012345678901234567890 361234567890123456789012345678901234567890123456789012345678901234567890123456789 370123456789012345678901234567890123456789012345678901234567890123456789012345678 3890123456789012345678901234567890123456789 this is the 38th line. 78901234567 398901234567890123456789012345678901234567890123456789012345678901234567890123456 407890123456789012345678901234567890123456789012345678901234567890123456789012345 416789012345678901234567890123456789012345678901234567890123456789012345678901234 425678901234567890123456789012345678901234567890123456789012345678901234567890123 434567890123456789012345678901234567890123456789012345678901234567890123456789012 443456789012345678901234567890123456789012345678901234567890123456789012345678901 452345678901234567890123456789012345678901234567890123456789012345678901234567890 461234567890123456789012345678901234567890123456789012345678901234567890123456789 47012345678901234567890123456 this is the 47th line. 4567890123456789012345678 489012345678901234567890123456789012345678901234567890123456789012345678901234567 498901234567890123456789012345678901234567890123456789012345678901234567890123456 50789012345678901234567890123456789012345678901234567 50th 7890123456789012345 51