ちつ たれつ
mochitsu motaretsu

Noun
Expression

1. helping each other; supporting each other; mutual cooperation; give and take; reciprocity; interdependence

両者 りょうしゃ関係 かんけい ちつ たれつで都合 つごうがいいものだ。
ryōshano kankēwa mochitsu motaretsude tsugōga ii monoda.
The relationship is convenient and symbiotic.