Complex sentence: The monastery was extended in 1830s and in the beginning of 1940s: the red-bricked cells for the brethren were erected along with 2 small buildings for an abbot and an archimandrite in the same architecture style.
Split into simpler sentences: The monastery was extended in 1830s and in the beginning of 1940s. The red-bricked cells for the brethren were erected along with 2 small buildings for an abbot and an archimandrite in the same architecture style.