function getFighterInfo(uint32 _season, uint32 _index) external view returns (
        uint outTokenID,
        uint32 outStrength
    ) {
		require(_index < 8);
		uint key = _season * 1000 + _index;
        
        Fighter storage soldier = soldiers[key];
		require(soldier.strength > 0);
        
        outTokenID = soldier.tokenID;
        outStrength = soldier.strength;
    }