interface UniswapFactoryApi{
    /*
        @notice Function that returns right exchange
        @param _adr  address of token
        @return address of an exchange
    */
    function getExchange(address _adr) external returns(address);

}
function getExchange(address _adr) external returns(address);

/*
 @notice Function that returns right exchange
 @param _adr  address of token
 @return address of an exchange
 */