//@version=2
study("1 min scalping", shorttitle="Scalping", overlay=true)
a = ema(close, 12)
b = ema(close, 26)
c = sma(close, 55)

long = cross(a, c) and a > b
short = cross(a, c) and a < b
plot(a, title="12", color=red, linewidth=1)
plot(b, title="26", color=blue, linewidth=1)
plot(c, title="55", color=green, linewidth=1)

alertcondition(long, title='Long entry', message='')
alertcondition(short, title='Short entry', message='')