Simple Strategy: MAonMA

study(title="Moving Average on Moving Average", shorttitle="MAonMA", overlay=true)
length = input(13, minval= 13, title="Don't change the values for this strategy.")
lenght1 = input (34, minval = 34, title="Don't change the values for this strategy.")
lenght2 = input (89, minval = 89, title="Don't change the values for this strategy.")
src = input(close, title="Source")
ema1 = ema(close, length)
ema2 = ema(close, lenght1)
ema3 = ema(close, lenght2)
e1 = plot(ema1, color=gray, linewidth=2)
e2 = plot(ema2, color=teal, linewidth=3)
e3 = plot(ema3, color=aqua, linewidth=4)