def solve(r1, r2, pos1, acc1, pos2, acc2):
    # both spheres move on straight lines: pos + t^2/2 * acc
    #  ... however doing a time transformation t' = t^2/2  this becomes pos + t' * acc
    # now center your coordinate system on sphere1:  pos' = (pos-pos1) - t*acc1
    #  ... then sphere2 is moving along:  (pos2-pos1) + t * (acc2-acc1)
    # either it moves away from sphere 1, or we have to check the nearest point 
    vdiff = lambda v2,v1:[x2-x1 for x2,x1 in zip(v2,v1)]
    dot = lambda v1,v2:sum(x1*x2 for x1,x2 in zip(v1,v2))
    
    pos = vdiff(pos2,pos1)
    acc = vdiff(acc2,acc1)
    
    # already in contact?
    if dot(pos,pos)<=(r1+r2)**2:
        return 'YES'
    # moving away?
    if dot(pos,acc)>=0: # not in contact now and ever
        return 'NO'
            
    # dropping the perpendicular from O on line: pos + t * acc
    t0 = - dot(pos,acc)/dot(acc,acc)
    perp = [p+t0*a for p,a in zip(pos,acc)]
    if dot(perp,perp)<=(r1+r2)**2: # check the distance
        return 'YES'
    else:
        return 'NO'