print,(x = randomu(seed,8)*100)
     15.1473      58.0953      82.7465      16.8637      97.7182      59.7856      17.7699      74.9154
print,ts_diff(x,1)
    -42.9479     -24.6513      65.8828     -80.8545      37.9326      42.0157     -57.1455     0.000000
print,ts_diff(x,2)
    -18.2967     -90.5341      146.737     -118.787     -4.08316      99.1613     0.000000     0.000000
print,ts_diff(x,3)
     72.2374     -237.271      265.524     -114.704     -103.244     0.000000     0.000000     0.000000