3 lower highs

//@version=3
study("3 Lower Highs", overlay=true)

// Inputs
leftbars = input(3)
rightbars = input(3)

// Define highs
ph = pivothigh(high, leftbars, rightbars)

// Three lower highs
firsthighs = if valuewhen(ph, high, 0) < valuewhen(ph[1], high, 0)
    1
lasthighs = if valuewhen(ph[1], high, 0) < valuewhen(ph[2], high, 0)
    1
threelowerhighs = firsthighs==1 and lasthighs==1

// Plot
plotshape(threelowerhighs, color=red, location=location.belowbar, style=shape.labelup, text="3 Lower Highs")