 ```python
import numpy as np
from pyscf import gto, scf, cc, mp

# Define the unit cell
cell = gto.M(
    atom='H 0 0 0; H 0 0 1.1',
    basis='6-31g',
    a=np.eye(3) * 2.5,
    verbose=4,
)

# Create a supercell
supercell = cell.copy(cell_matrix=np.eye(3) * 2)

# Run molecular Hartree-Fock program using integrals between periodic gaussians
mf = scf.KRHF(supercell).run()

# Call a molecular CC method for gamma point calculation
mycc = cc.KCCSD(mf)
mycc.kernel()

# Perform k-point calculations for the same system
kpts = np.array([[0.5, 0.5, 0.5], [0.5, 0.5, -0.5]])

mf_kpts = scf.KRHF(supercell, kpts=kpts).run()
ccsd_kpts = cc.KCCSD(mf_kpts)
ccsd_kpts.kernel()

ipccsd_kpts = cc.KIPCCSD(mf_kpts)
ipccsd_kpts.kernel()

eaccsd_kpts = cc.KEA CCSD(mf_kpts)
eaccsd_kpts.kernel()

# Calculate the differences between gamma/k-point mean-field, ccsd, ip-eomccsd, and ea-eomccsd calculations
print("Delta E (gamma-kpts):")
print("HF:", mf.e_tot - mf_kpts.e_tot)
print("CCSD:", mycc.e_tot - ccsd_kpts.e_tot)
print("IP-EOMCCSD:", mycc.e_tot - ipccsd_kpts.e_tot)
print("EA-EOMCCSD:", mycc.e_tot - eaccsd_kpts.e_tot)
```
Please note that the above code is a basic example and may need to be adjusted depending on the specific system and requirements. The `pyscf` library should be installed and imported before running the code.