def chu(x,y):
    m=x
    temp=1
    if x>y:
        m=y
    for i in range(2,m+1):
        while x%i==0 and y%i==0:
            x=x/i
            y=y/i
            temp=temp*i
            print str(x)+":"+str(y)+":"+str(i)
    return x*y*temp


gbs=reduce(chu,[x for x in range(1,70,2)])
print gbs