ar1      ma1     ma2
      0.7734  -1.0773  0.1191
s.e.  0.0709   0.0962  0.0824

ME     RMSE      MAE      MPE     MAPE     MASE        ACF1
Training set -1.580214 163.8034 94.91732 -4.18724 13.61585 1.029359 0.002118006

fc<-forecast(fit, level=80, h=100)
plot(fc)