Caitanya-caritāmṛta 13.18
bālya, paugaṇḍa, kaiśora, yauvana, — cāri bheda ataeva ādi-khaṇḍe līlā cāri bheda
[baalya, pauganda, kaishora, yauvana, — chaari bheda ataeva aadi-khande leelaa chaari bheda]
Blended reading (Sanskrit + English inline)
bālya, paugaṇḍa, kaiśora, yauvana, — cāri bheda ataeva ādi-khaṇḍe līlā cāri bheda
In His original pastimes there are four divisions: bālya, paugaṇḍa, kaiśora and yauvana [childhood, early boyhood, later boyhood and youth ].
My note
Source: vedabase.io