def n_igci21(x,y): return len(x) * igci(x,y,2,1)
def n_igci11(x,y): return len(x) * igci(x,y,1,1)
def n_igci12(x,y): return len(x) * igci(x,y,1,2)
def igci22(x,y): return igci(x,y,2,2)
def igci21(x,y): return igci(x,y,2,1)
def igci12(x,y): return igci(x,y,1,2)
def igci11(x,y): return igci(x,y,1,1)
def n_igci22(x,y): return len(x) * igci(x,y,2,2)