python3 - <<'PY'
p=996979
d=14641
def sums(r):
    s2=s3=0
    for x in r:
        a=(d*x)%p
        s2=(s2+a*a)%983
        s3=(s3+a*a*a)%983
    return s2,s3
B=range(509847,509896)
A1=range(221445,221491)
A2=range(884827,884872)
sb=sums(B); sa1=sums(A1); sa2=sums(A2)
print(sb,sa1,sa2)
print((91*sb[0]+sa1[0]+sa2[0])%983,(91*sb[1]+sa1[1]+sa2[1])%983)
PY