def triangles():
    L=[1,]
    while(True):
        yield L 
        i=len(L)-1
        while(i):
            L[i]=L[i]+L[i-1]
            i-=1
        L.append(1)

n=0
for t in triangles():
    print (t)
    n=n+1
    if n==10:
        break